Cited by 1,249Child and Adolescent Psychosocial and Emotional DevelopmentEmotions and Moral BehaviorGender Roles and Identity Studies

Gender differences in emotion expression in children: A meta-analytic review.

Open access
Chaplin, Tara M., Aldao, Amelia·2013·Psychological Bulletin

Abstract

Emotion expression is an important feature of healthy child development that has been found to show gender differences. However, there has been no empirical review of the literature on gender and facial, vocal, and behavioral expressions of different types of emotions in children. The present study constitutes a comprehensive meta-analytic review of gender differences and moderators of differences in emotion expression from infancy through adolescence. We analyzed 555 effect sizes from 166 studies with a total of 21,709 participants. Significant but very small gender differences were found overall, with girls showing more positive emotions (g = -.08) and internalizing emotions (e.g., sadness, anxiety, sympathy; g = -.10) than boys, and boys showing more externalizing emotions (e.g., anger; g = .09) than girls. Notably, gender differences were moderated by age, interpersonal context, and task valence, underscoring the importance of contextual factors in gender differences. Gender differences in positive emotions were more pronounced with increasing age, with girls showing more positive emotions than boys in middle childhood (g = -.20) and adolescence (g = -.28). Boys showed more externalizing emotions than girls at toddler/preschool age (g = .17) and middle childhood (g = .13) and fewer externalizing emotions than girls in adolescence (g = -.27). Gender differences were less pronounced with parents and were more pronounced with unfamiliar adults (for positive emotions) and with peers/when alone (for externalizing emotions). Our findings of gender differences in emotion expression in specific contexts have important implications for gender differences in children's healthy and maladaptive development.

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Registry

Crossref · 10.1037/a0030737

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Claims the paper makes

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  • Findingown data

    Gender differences in externalizing emotions were more pronounced when children were with peers or alone.

    “Gender differences were less pronounced with parents and were more pronounced with unfamiliar adults (for positive emotions) and with peers/when alone (for externalizing emotions).”
    Quote in the paperSubstantial claim
  • Findingown data

    Girls showed more positive emotions than boys in adolescence, g = −.28.

    “with girls showing more positive emotions than boys in middle childhood (g = −.20) and adolescence (g = −.28)”
    Quote in the paperSubstantial claim
  • Findingown data

    Girls showed more positive emotions than boys in middle childhood, g = −.20.

    “with girls showing more positive emotions than boys in middle childhood (g = −.20) and adolescence (g = −.28)”
    Quote in the paperSubstantial claim
  • Findingown data

    Boys showed fewer externalizing emotions than girls in adolescence, g = −.27.

    “Boys showed more externalizing emotions than girls at toddler/preschool age (g = .17) and middle childhood (g = .13) and fewer externalizing emotions than girls in adolescence (g = −.27).”
    Quote in the paperSubstantial claim
  • Findingown data

    The meta-analysis found statistically significant but very small overall gender differences in children's emotion expression.

    “Significant, but very small, gender differences were found overall”
    Quote in the paperSubstantial claim
  • May combine two claims. 103
  • The quote only partly states this claim. 1
  • Classified as probably not a substantial claim. 27
  • May combine two claims.

    Findingown data

    Girls displayed more positive emotions than boys, with a meta-analytic effect size of g = −.08.

    “with girls showing more positive emotions (g = −.08)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Follow-up comparisons for negative emotion expressions showed a significant difference between peer and alone contexts, with stronger gender differences (boys > girls) in the peer context.

    “For negative emotion expressions, follow-up comparisons showed a significant difference in effect sizes between the peer and alone contexts (Q [1, 21] = 7.80, p < .008), with stronger gender differences (boys > girls) in the peer than the alone contexts.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Sympathy expressions showed a significant very small to small effect size, with girls showing more than boys.

    “fear and sympathy expressions showed significant very small to small effect sizes and shame showed a significant medium effect size, with girls showing more emotion than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Follow-up comparisons showed a significant difference in effect sizes between negative and neutral tasks, with stronger gender differences (girls > boys) in neutral than negative tasks.

    “Follow-up comparisons showed a significant difference in effect sizes between the negative and neutral tasks (Q [1, 88] = 7.53, p < .008), with stronger gender differences (girls > boys) in the neutral than the negative tasks.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant small to medium effect size in the peer context (g = .29), with boys > girls, but not in parental or non-parental adult contexts.

    “For externalizing and general negative emotion expressions, significant small to medium and small effect sizes were found in the peer context (for externalizing: mean g = .29, for negative: mean g = .19, boys > girls), but not in the parental or non-parental adult contexts.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant small effect size in toddler/preschool (g = -.09), with girls > boys.

    “For internalizing emotion expressions, there were significant small-magnitude effect sizes in infancy through childhood age groups (for infancy: mean g = −.14, for preschool/toddler, mean g = −.09, for childhood, mean g = −.12, girls > boys), but not in the adolescent age group.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant positive small effect size in childhood (g = .13), with boys > girls.

    “For externalizing emotion expressions, gender differences were not present in infancy, but significant positive small effect sizes emerged in the toddler/preschool age group (mean g = .17, boys > girls) and remained in the childhood age group (mean g = .13, boys > girls). Unexpectedly, there was a significant negative (girls > boys) small to medium effect size for externalizing emotion expressions”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Negative emotion expressions showed a significant small effect size in demand tasks (g = .17), with boys > girls.

    “For negative emotion expressions, the effect size for non-demand tasks was not significant, but the effect size was significant and of small magnitude for demand tasks (g = .17, boys > girls).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant very small effect size in non-demand studies (g = .09), with boys > girls.

    “For internalizing and externalizing emotion expressions, there were significant very small effect sizes for non-demand studies (for internalizing- g = −.10, girls > boys, for externalizing- g = .09, boys > girls), but no significant effect sizes for demand studies.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Shame expressions showed a significant medium effect size, with girls showing more than boys.

    “fear and sympathy expressions showed significant very small to small effect sizes and shame showed a significant medium effect size, with girls showing more emotion than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Follow-up comparisons for externalizing emotion expressions showed significant differences between adolescent and infant, adolescent and toddler/preschool, and adolescent and child groups, with negative (girls > boys) effect sizes in adolescence and positive (boys > girls) in other groups.

    “Follow-up comparisons for externalizing emotion expressions showed significant differences in the strength of effect sizes between the adolescent and infant groups (Q [1, 22] = 19.55, p < .0001), the adolescent and toddler/preschool groups (Q [1, 50] = 43.18, p < .0001), and the adolescent and child groups (Q [1, 22] = 31.10, p < .0001), with negative (girls > boys) effect sizes in the adolescent”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Follow-up comparisons for externalizing expressions showed significant differences between alone and non-parental adult contexts, with stronger gender differences (boys > girls) when alone than with unfamiliar adults.

    “In addition, there were significant differences in effect sizes between the alone and non-parental adult contexts (Q [1, 33] = 9.24, p < .008), with stronger gender differences in externalizing emotion expressions (boys > girls) when alone than when with unfamiliar adults.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    For negative emotion expressions, age remained a significant predictor (β = .25, p < .05 for infant vs. toddler/preschool; β = .51, p < .0001 for infant vs. adolescent).

    “For negative emotion expressions, age and context remained significant (β = .25, p < .05 for infant vs. toddler/preschool; β = .51, p < .0001 for infant vs. adolescent; β = −.30, p < .01 for parent vs. peer context).”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant positive small effect size in toddler/preschool (g = .17), with boys > girls.

    “For externalizing emotion expressions, gender differences were not present in infancy, but significant positive small effect sizes emerged in the toddler/preschool age group (mean g = .17, boys > girls) and remained in the childhood age group (mean g = .13, boys > girls). Unexpectedly, there was a significant negative (girls > boys) small to medium effect size for externalizing emotion expressions”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    General negative emotion expressions showed a significant small effect size in the peer context (g = .19), with boys > girls, but not in parental or non-parental adult contexts.

    “For externalizing and general negative emotion expressions, significant small to medium and small effect sizes were found in the peer context (for externalizing: mean g = .29, for negative: mean g = .19, boys > girls), but not in the parental or non-parental adult contexts.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant very small to small effect size for negative tasks (g = -.13), with girls > boys, but no significant effect for positive or neutral tasks.

    “As shown in Table 3, for internalizing and externalizing emotion expressions, there were very small to small magnitude significant effect sizes for the negative tasks (for internalizing emotions, mean g = −.13, girls > boys; for externalizing emotions, mean g = .09, boys > girls), but no significant effect sizes for the positive or neutral tasks.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Fear expressions showed a significant very small to small effect size, with girls showing more than boys.

    “fear and sympathy expressions showed significant very small to small effect sizes and shame showed a significant medium effect size, with girls showing more emotion than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Positive emotion expressions showed a significant small to medium effect size in adolescence (g = -.28), with girls > boys.

    “For positive emotion expressions, consistent with hypotheses, gender differences were not present in infancy and the toddler/preschool period, but significant small and small to medium effect sizes emerged in the childhood age group (mean g = −.20, girls > boys), and remained in adolescence (mean g = −.28, girls > boys)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant small effect size in infancy (g = -.14), with girls > boys.

    “For internalizing emotion expressions, there were significant small-magnitude effect sizes in infancy through childhood age groups (for infancy: mean g = −.14, for preschool/toddler, mean g = −.09, for childhood, mean g = −.12, girls > boys), but not in the adolescent age group.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Anger expressions showed a significant very small effect size, with boys higher than girls.

    “anger expressions showed a significant very small effect size with boys higher than girls.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant small to medium effect size when alone (g = .28), with boys > girls.

    “Additionally, a significant small to medium effect size was found for externalizing emotion expressions when alone (mean g = .28, boys > girls).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant small effect size with a non-parental adult (g = -.16), with girls > boys, but not with peers or when alone.

    “For positive and internalizing emotion expression categories, significant small-magnitude effect sizes were found with a non-parental adult (for positive: mean g = −.12, for internalizing: mean g = −.16, girls > boys), but not with peers or when alone.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Positive emotion expressions showed a significant very small effect size in non-demand tasks (g = -.07), with girls > boys.

    “As shown in Table 3, the effect size for the positive emotion expression category was significant and of very small magnitude in non-demand tasks (mean g = −.07, girls > boys) and was significant and of small to medium magnitude in studies with a demand that children mask their negative emotions (mean g = −.27, girls > boys).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant negative small to medium effect size in adolescence (g = -.27), with girls > boys.

    “For externalizing emotion expressions, gender differences were not present in infancy, but significant positive small effect sizes emerged in the toddler/preschool age group (mean g = .17, boys > girls) and remained in the childhood age group (mean g = .13, boys > girls). Unexpectedly, there was a significant negative (girls > boys) small to medium effect size for externalizing emotion expressions”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant small effect size with parents (g = -.12), with girls > boys.

    “Also, for internalizing emotion expressions, a significant small-magnitude effect size was found with parents (mean g = −.12, girls > boys).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant very small effect size in non-demand studies (g = -.10), with girls > boys.

    “For internalizing and externalizing emotion expressions, there were significant very small effect sizes for non-demand studies (for internalizing- g = −.10, girls > boys, for externalizing- g = .09, boys > girls), but no significant effect sizes for demand studies.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Positive emotion expressions showed a significant small to medium effect size in demand tasks (g = -.27), with girls > boys.

    “As shown in Table 3, the effect size for the positive emotion expression category was significant and of very small magnitude in non-demand tasks (mean g = −.07, girls > boys) and was significant and of small to medium magnitude in studies with a demand that children mask their negative emotions (mean g = −.27, girls > boys).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Positive emotion-unspecified showed a significant small effect size, with girls showing more than boys.

    “only positive emotion-unspecified showed a significant (small) effect size with girls showing more emotion than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing negative emotion expressions showed a significant very small mean effect size (g = -.10), with girls expressing more than boys.

    “There was a significant, yet very small mean effect size (g) for internalizing emotions of −.10, indicating greater internalizing emotion expressions for girls than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Interest expressions showed a significant small effect size, with girls higher than boys.

    “Interest expressions showed a significant small effect size, with girls higher than boys.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    General negative emotion expressions showed a significant negative medium effect size in adolescence (g = -.35), with girls > boys.

    “Similarly, for general negative emotion expressions, there was a significant small-magnitude positive (boys > girls) effect size in the childhood age group (mean g = .14) and then a significant negative (girls > boys) medium effect size emerged in the adolescent group (mean g = −.35).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Positive emotion expressions showed a significant very small mean effect size (g = -.08), with girls expressing more than boys.

    “there was a significant, yet very small mean effect size (g) for positive emotions of −.08, indicating greater positive emotion expression for girls than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Externalizing negative emotion expressions showed a significant very small mean effect size (g = .09), with boys expressing more than girls.

    “There was a significant, yet very small mean effect size (g) for externalizing emotions of .09, indicating greater externalizing emotion expressions for boys than girls.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Positive emotion expressions showed a significant small effect size in childhood (g = -.20), with girls > boys.

    “For positive emotion expressions, consistent with hypotheses, gender differences were not present in infancy and the toddler/preschool period, but significant small and small to medium effect sizes emerged in the childhood age group (mean g = −.20, girls > boys), and remained in adolescence (mean g = −.28, girls > boys)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    General negative emotion expressions showed a significant positive small effect size in childhood (g = .14), with boys > girls.

    “Similarly, for general negative emotion expressions, there was a significant small-magnitude positive (boys > girls) effect size in the childhood age group (mean g = .14) and then a significant negative (girls > boys) medium effect size emerged in the adolescent group (mean g = −.35).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Externalizing emotion expressions showed a significant very small to small effect size for negative tasks (g = .09), with boys > girls, but no significant effect for positive or neutral tasks.

    “As shown in Table 3, for internalizing and externalizing emotion expressions, there were very small to small magnitude significant effect sizes for the negative tasks (for internalizing emotions, mean g = −.13, girls > boys; for externalizing emotions, mean g = .09, boys > girls), but no significant effect sizes for the positive or neutral tasks.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Contempt expressions showed a significant small to medium effect size, with girls higher than boys.

    “contempt expressions showed a significant small to medium effect size with girls showing higher contempt than boys.”
    Quote in the paperNot a substantial claim
  • May combine two claims. The quote only partly states this claim.

    Findingown data

    Positive emotion expressions showed a significant small effect size for neutral tasks (g = -.23), with girls > boys.

    “For the positive emotion category, the mean effect size was significant for the neutral task only (mean g = −.23, small magnitude).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Follow-up comparisons for externalizing expressions showed significant differences between peer and parent contexts and between peer and non-parental adult contexts, with larger gender differences (boys > girls) in the peer context.

    “Follow-up Bonferroni-corrected comparisons for externalizing expressions showed significant differences in effect sizes between the peer and parent contexts (Q [1, 41] = 7.15, p < .008) and between the peer and non-parental adult contexts (Q [1, 34] = 10.73, p < .008), with larger gender differences (boys > girls) in the peer than the parent and unfamiliar adult contexts.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Internalizing emotion expressions showed a significant small effect size in childhood (g = -.12), with girls > boys.

    “For internalizing emotion expressions, there were significant small-magnitude effect sizes in infancy through childhood age groups (for infancy: mean g = −.14, for preschool/toddler, mean g = −.09, for childhood, mean g = −.12, girls > boys), but not in the adolescent age group.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Positive emotion expressions showed a significant small effect size with a non-parental adult (g = -.12), with girls > boys, but not with peers or when alone.

    “For positive and internalizing emotion expression categories, significant small-magnitude effect sizes were found with a non-parental adult (for positive: mean g = −.12, for internalizing: mean g = −.16, girls > boys), but not with peers or when alone.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Boys expressed more externalizing emotions such as anger than girls, with a very small effect size (g = .09).

    “and boys expressing more externalizing emotions such as anger than girls (g = .09)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingreasoning

    Positive and internalizing emotion expressions, more common for girls, show the largest gender differences in the presence of an unfamiliar adult.

    “Positive and internalizing emotion expressions, which are more common for girls, show the largest gender differences in the presence of an unfamiliar adult.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Of internalizing emotion expressions, all were in the direction of girls greater than boys, with fear and sympathy showing significant very small to small effect sizes (g's = −.10, −.13) and shame showing a significant medium effect size (g = −.56).

    “Of the internalizing emotion expressions, all were in the direction of girls greater than boys, with two (fear and sympathy) showing significant very small to small effect sizes (g’s = −.10, −.13) and one (shame) showing a significant medium effect size (g = −.56).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Joy at another's expense showed a significant small to medium effect size favoring boys (g = .29), in contrast to findings for the positive emotion expression category.

    “Further, joy at another’s expense (e.g., gleeful taunting of others) showed a significant small to medium effect size favoring boys (g = .29), which is in contrast to findings for the positive emotion expression category, with greater positive emotion expressions for girls than boys.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Gender differences emerged by toddler/preschool for externalizing emotion expressions and in childhood for general negative and positive emotion expressions.

    “but emerged by the toddler/preschool period (for externalizing emotion expressions) and in childhood (for general negative and positive emotion expressions)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Contrary to prediction, gender differences in many emotion expressions either diminished (for internalizing) or reversed direction (for externalizing and negative) in adolescence, although gender differences were strong for positive emotion expressions at this age.

    “contrary to prediction, we found that gender differences in many of the emotion expressions either diminished (for internalizing emotion expressions) or reversed direction (for externalizing and negative emotion expressions) in adolescence (although gender differences were strong for positive emotion expressions at this age)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Unexpectedly, and contrary to past meta-analytic findings, significant gender differences in positive emotion expressions were found only in neutral tasks.

    “Unexpectedly, and contrary to past meta-analytic findings (Hall & Halberstadt, 1986), we found significant gender differences in positive emotion expressions only in neutral tasks.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Hall & Halberstadt, 1986

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Findingnone given

    Gender differences typically did not emerge when children were observed with a parent, except for internalizing emotion expressions.

    “gender differences typically did not emerge when children were observed with a parent (except for internalizing emotion expressions)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    For externalizing emotions, gender differences (boys > girls) were virtually non-existent with parents (g = .01), but small to medium with peers (g = .29) and when alone (g = .28).

    “gender differences in the expression of externalizing emotions (with boys > girls) were virtually non-existent when with parents (g = .01), but were of small to medium magnitude with peers (g = .29) and when alone (g = .28)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Effect sizes for positive emotion expressions (girls > boys) and general negative emotion expressions (girls lower than boys) were larger in situations with a demand to minimize or mask negative emotion (g = −.27 for positive; g = .17 for negative) than in situations without this demand (g = −.07 for positive; g = .01 for negative).

    “Effect sizes for positive emotion expressions (with girls greater than boys) and general negative emotion expressions (with girls lower than boys) were larger in situations with a demand to minimize or mask negative emotion (g = − .27 for positive emotion; g = .17 for negative emotion) than in situations without this demand (g = −.07 for positive; g = .01 for negative).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Of externalizing emotion expressions, only anger showed a significant very small effect size favoring boys (g = .10), suggesting gender differences in externalizing may be driven by anger.

    “Of the externalizing emotion expressions, only anger showed a significant very small effect size favoring boys (g = .10), suggesting that gender differences with boys greater than girls in externalizing emotion expressions may be driven by differences in anger.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Girls expressed more positive emotions than boys, with a very small effect size (g = −.08).

    “with girls expressing more positive emotions (g = −.08)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Girls expressed more internalizing negative emotions such as sadness and anxiety than boys, with a very small effect size (g = −.10).

    “and more internalizing negative emotions such as sadness and anxiety (g = −.10) than boys”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    For positive, externalizing, and general negative emotion expressions, gender differences were absent in infancy but were small to medium in middle childhood and adolescence (g's ranging from .13 to .35).

    “gender differences in positive, externalizing, and general negative emotion expressions were not present in infancy, but were of small to medium magnitude in middle childhood and adolescence (with g’s ranging from .13 to .35)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Gender differences were not found in infancy for positive, externalizing, and general negative emotion expressions, but were found for internalizing emotion expressions.

    “gender differences were not found in infancy for positive, externalizing, and general negative emotion expressions (although they were found for internalizing emotion expressions)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    There was not a significant gender difference for pride expressions, although the effect size of g = .42 favored boys.

    “Interestingly, there was not a significant gender difference for the three effect sizes for pride expressions, although the effect size of g = .42 favored boys.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Very small to small effect sizes favored girls for all specific positive emotion expressions (happiness, surprise, positive emotion-unspecified), but only positive emotion-unspecified reached significance (g = −.15).

    “We found very small to small magnitude effect sizes favoring girls for all of the specific emotion expressions in the positive emotion category (happiness, surprise, and positive emotion-unspecified), although the only effect size that reached significance was for positive emotion-unspecified (g = −.15).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Girls expressed more internalizing emotions (sadness, fear, sympathy, shame) than boys, particularly in negative situations and with an unfamiliar adult.

    “Girls also expressed more internalizing emotions (such as sadness, fear, sympathy, and shame) than boys, particularly in negative situations and when with an unfamiliar adult.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Girls showed greater positive emotion expressions than boys, and this difference became increasingly evident with age into adolescence and in situations with an unfamiliar adult and social pressure to mask negative emotions by appearing cheery.

    “Girls showed greater positive emotion expressions than boys and this gender difference became increasingly evident as the age of the research participants increased into adolescence and in situations with an unfamiliar adult and in which there was social pressure to mask negative emotions by appearing cheery.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The meta-analysis found small but significant gender differences in emotion expressions, with larger differences emerging at certain ages and in certain contexts.

    “Our findings suggest that there are small but significant gender differences in emotion expressions, with larger gender differences emerging at certain ages and in certain contexts.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Boys showed greater externalizing emotion expressions, particularly anger, in toddler/preschool and middle childhood, in negative situations, and with peers or alone, which could contribute to boys' greater risk for conduct problems.

    “Boys, in contrast, showed greater externalizing emotion expressions, particularly anger expressions, in the toddler/preschool and middle childhood periods, in negative situations, and when with peers or alone, which could contribute to boys’ greater risk for conduct problems.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    LaFrance et al. (2003) found significant gender differences in smiling behavior among adults and adolescents, with females higher than males (d = −.41).

    “LaFrance and colleagues’ (2003) meta-analysis of adults and adolescents found significant gender differences (females higher than males) in smiling behavior (d = −.41).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites LaFrance and colleagues’ (2003)

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Else-Quest et al. (2006) found no significant gender differences for sadness or anger.

    “Else-Quest and colleagues (2006) found a small but significant effect size for fearfulness (but no significant differences for sadness or anger), with higher fearfulness in girls than boys (d = −.12).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Else-Quest and colleagues (2006)

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Else-Quest et al. (2006) did not find a significant overall gender difference for smiling behavior.

    “They did not find a significant overall gender difference for smiling behavior”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Else-Quest and colleagues (2006)

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Maccoby and Jacklin (1974) reported no consistent gender differences in children's expression of fear.

    “Maccoby and Jacklin reported no consistent gender differences for children’s expression of fear.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Maccoby and Jacklin

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Premisecitation

    Buck (1977) found that boys' emotional expressions decreased with age from 4 to 6 years, whereas girls' expressions did not.

    “Buck (1977) found that boys’ emotional expressions decreased with age from age 4–6 whereas girls’ expressions did not.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Buck (1977) source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Maccoby and Jacklin (1974) reported that infant boys and girls were similar in frustration reactions.

    “They reported that infant boys and girls were similar in their frustration reactions”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Maccoby and Jacklin (1974) source
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Maccoby and Jacklin (1974) reported that girls' negative emotional outbursts diminished with age more than boys', so toddler boys showed greater frustration reactions than girls.

    “girls’ negative emotional outbursts diminished with age more than boys’. As a result, toddler (18 month old) boys showed greater frustration reactions than girls.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Maccoby and Jacklin (1974) source
  • May combine two claims.

    Premisecitation

    In early childhood, boys show less language ability and inhibitory control than girls.

    “in early childhood, boys show less language ability and inhibitory control than girls (see Brody, 1999).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Brody, 1999

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationown data

    As predicted, gender differences were mostly larger when children were with unfamiliar adults (for internalizing emotions) or with peers (for externalizing and negative emotions) than when with parents; unexpectedly, the gender difference was also present for externalizing emotion expressions when alone.

    “In sum, as predicted, gender differences were mostly larger when children were with unfamiliar adults (for internalizing emotions) or with peers (for externalizing and negative emotions) than when they were with parents. Unexpectedly, the gender difference was also present for externalizing emotion expressions when alone.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    As predicted, gender-role consistent gender differences in positive and general negative emotion expressions were stronger in demand situations; this prediction did not hold for internalizing and externalizing emotion expressions.

    “Overall, as predicted, gender-role consistent gender differences in positive and general negative emotion expressions were stronger in demand situations. This prediction did not hold true for internalizing and externalizing emotion expressions.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    Thirty-eight articles (23%) were double-coded by a trained research assistant and checked for inter-rater reliability for moderator variables.

    “Thirty-eight articles (23%) were double-coded by a trained research assistant and were checked for inter-rater reliability for the moderator variables.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductcitation

    The study used random effects models, which produce larger standard errors and reduce the probability of Type I errors.

    “Random effects models produce larger standard errors, therefore reducing the probability of Type I errors (for a review of risks resulting when not using random effects models when appropriate, see Field, 2003).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Field, 2003 source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Women have been shown to be more emotionally expressive than men.

    “women have been shown to be more emotionally expressive than men- Kring & Gordon, 1998”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Kring & Gordon, 1998

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationown data

    As hypothesized, gender-role consistent gender differences in emotion expression were most pronounced in tasks designed to elicit negative emotions, at least for internalizing and externalizing emotions; unexpectedly, gender differences in positive emotion expressions were largest in neutral tasks.

    “As hypothesized, gender-role consistent gender differences in emotion expression were most pronounced in tasks designed to elicit negative emotions, at least for internalizing and externalizing emotions. Unexpectedly, gender differences in positive emotion expressions were largest in neutral tasks.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Study design and conductown data

    Kendall's Tau tests for funnel plot asymmetry were non-significant for positive emotion (τb = −.10), internalizing (τb = −.02), externalizing (τb = .12), and general negative (τb = −.01) emotion expression.

    “Indeed, in this meta-analysis, the Kendall’s Tau values were non-significant (for positive emotion expression: τb= −.10, ns; for internalizing: τb= −.02, ns; for externalizing: τb= .12, ns; for general negative: τb= −.01, ns)”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    The main effect of age might be driven by a developmental transition: girls show greater positive emotion than boys by adolescence; boys show more externalizing and negative emotions than girls before adolescence, but girls show greater externalizing and negative emotions than boys in adolescence.

    “This indicated that the main effect of age on gender differences in emotion expressions might be driven by a developmental transition with: 1) girls showing greater positive emotion than boys by adolescence and 2) boys showing more externalizing and negative emotions than girls prior to adolescence but girls showing greater externalizing and negative emotions than boys in adolescence.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Study design and conductown data

    Inter-rater reliability kappa statistics were .91 for age, .79 for emotion, .72 for task valence, and .71 for interpersonal context (mean κ = .81), indicating good reliability.

    “Kappa statistics were .91 for age, .79 for emotion, .72 for task valence, and .71 for interpersonal context (mean κ = .81), indicating good reliability.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Premisecitation

    Girls have greater skill at modulating facial expressions.

    “girls’ greater propensity for responding in ways that preserve relationships (e.g., with the experimenter), consistent with female gender roles, and b) girls’ greater skill at modulating facial expressions (Davis, 1995).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Davis, 1995 source
  • May combine two claims.

    Premisecitation

    Most studies provided multiple effect sizes, violating the assumption of independence of meta-analyses.

    “Most studies provided multiple effect sizes, therefore violating the assumption of independence of meta-analyses (Lipsey & Wilson, 2001).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Lipsey & Wilson, 2001

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationcitation

    Boys' greater tendency to show joy at another's expense may lead to risk for conduct problems because this form of positive emotion is callous and potentially a form of aggression.

    “Boys’ greater tendency to show joy at another’s expense may lead to risk for conduct problems as this form of positive emotion is callous and potentially a form of aggression (e.g., Chaplin et al., 2005; Frick, Cornell, Barry, Bodin, & Dane, 2003).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Chaplin et al., 2005

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Frick et al., 2003

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationcitation

    With parents, children may feel free to express a full range of emotions, including gender-role inconsistent emotions, leading to smaller gender differences.

    “With parents, at least among children who are not in high risk conditions, children may feel free to express a full range of emotions, including gender-role inconsistent emotions (Zeman & Garber, 1996). This freedom to express any emotions would then lead to smaller gender differences in emotion expressions.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Zeman & Garber, 1996

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Interpretationcitation

    The finding that girls begin to express more externalizing emotions than boys in adolescence may reflect a trend for girls to be more expressive overall or a recent change in gender roles for adolescent girls.

    “The finding that girls begin to express more externalizing emotions than boys in adolescence may reflect a trend for girls to be more expressive of emotions overall than boys as they reach adolescence. It may also reflect a recent change in gender roles for adolescent girls.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Brown, 1999

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Study design and conductown data

    Under Orwin's procedure with a mean effect size of .05, 146 additional positive, 109 additional internalizing, and 62.4 additional externalizing effect sizes would be needed to make the significant effects non-significant, about twice as many as in the meta-analysis.

    “We would need 146 more positive, 109 more internalizing, and 62.4 externalizing effect sizes, or about twice as many effect sizes as are in the present meta-analysis.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    A well-developed sense of assertiveness and self-efficacy may protect boys against depression and anxiety, contributing to boys' lower rates of these disorders.

    “In addition to facilitating healthy development, a well-developed sense of assertiveness and self-efficacy may also protect boys against depression and anxiety, contributing to boys’ lower rates of these disorders.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationreasoning

    Negative tasks may elicit greater amounts of sadness, fear, anger, and other internalizing and externalizing emotions, resulting in a greater range and ability to detect gender differences.

    “Negative tasks may elicit greater amounts of sadness, fear, anger, and other internalizing and externalizing emotions, resulting in a greater range and greater ability to detect gender differences.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationcitation

    When interacting with less familiar individuals, children may regulate emotion expressions to conform to societal gender roles, leading to greater gender differences.

    “when interacting with individuals whom children do not know as well, children may regulate their emotion expressions to conform to societal gender roles (La France et al., 2003), leading to greater gender differences in emotion expressions.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites La France et al., 2003

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationreasoning

    Girls' greater propensity to display positive emotion with unfamiliar adults and to mask negative emotions when the situation calls for it may contribute to and be influenced by their intention and ability to please adults and behave prosocially.

    “Girls’ greater propensity to display positive emotion when interacting with unfamiliar adults, and their greater tendency to mask negative emotions when the situation calls for it (such as when receiving a disappointing gift), may contribute to and be influenced by their intention and ability to please adults and to behave in prosocial ways.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    The many changes of adolescence, including physiological and social changes, may bring about an increase in internalizing emotion expressions for both boys and girls, attenuating gender differences for this category.

    “It is possible that the many changes of adolescence, including physiological (e.g., puberty) and social (e.g., at school and in the peer group), bring about an increase in internalizing emotion expressions for both boys and girls, attenuating gender differences for this emotion category.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationreasoning

    Girls may both express and experience higher shame than boys.

    “Thus, girls may both express and experience higher shame than boys.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Interpretationreasoning

    The gender difference in externalizing emotion expressions (boys > girls) when alone could reflect a tendency for boys to experience more externalizing emotions than girls.

    “The gender difference in externalizing emotion expressions (with boys > girls) when alone could reflect a tendency for boys to experience more externalizing emotions than girls.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    Boys' modulated anger expressions may facilitate the development of assertiveness, persistence, and self-efficacy.

    “Boys’ modulated anger expressions may facilitate the development of assertiveness, persistence, and self-efficacy.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationcitation

    Girls' greater sadness, sympathy/empathic concern, and shame expressions, if taken to an extreme, may be a risk for depression and may contribute to girls' increases in depression in adolescence.

    “In addition, girls’ greater sadness, sympathy/empathic concern, and shame expressions, if taken to an extreme, may be a risk for depression (e.g., Chaplin & Cole, 2005; Nolen-Hoeksema, Larson, & Grayson, 1999) and may contribute to girls’ increases in depression in adolescence (Hankin, et al., 1998).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites Chaplin & Cole, 2005

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Nolen-Hoeksema et al., 1999

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Hankin et al., 1998

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    Girls' more frequent displays of positive emotions may reflect their propensity to engage new persons socially, foster interpersonal harmony, and appease adults.

    “Girls’ more frequent displays of positive emotions may reflect their propensity to engage new persons socially, to foster interpersonal harmony, and to appease adults.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationcitation

    An alternate explanation is that girls' experience in reducing anger and externalizing expressions when with peers and non-parental adults carries over to alone situations, leading to lower externalizing expressions in girls than boys.

    “An alternate explanation for our findings could be that girls’ experience in reducing anger and other externalizing emotion expressions when with peers and non-parental adults, at least prior to adolescence, carries over to situations when girls are alone, leading to gender differences in the alone context with girls lower than boys in externalizing expressions.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationreasoning

    Boys' greater externalizing and general negative emotions when with peers may help them negotiate peer relationships assertively and protect against peer pressure.

    “It is notable that boys show greater externalizing (and general negative) emotions than girls when with peers as this may help them to negotiate peer relationships in an assertive manner and could protect them against succumbing to peer pressure.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Interpretationreasoning

    If true, this would suggest boys may have good regulatory abilities for externalizing emotions.

    “If true, this would suggest that boys may indeed have good regulatory abilities for externalizing emotions.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data

    Positive and negative tasks may not elicit gender differences for joy and other positive emotion expressions; instead these are found in neutral tasks.

    “This suggests that positive and negative tasks may not elicit gender differences for joy and other positive emotion expressions and instead these are found in neutral tasks.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    Gender differences in some emotion expressions may begin quite early and may be either innate or due to very early socialization responses of caregivers.

    “which may further suggest that gender differences in some emotion expressions may begin quite early and may be either innate or due to very early socialization responses of caregivers.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationreasoning

    This may suggest girls are better at regulating emotion to meet social demands and/or more motivated than boys to cover up negative emotions with positive emotions to protect another's feelings.

    “This may suggest that girls are better at regulating emotion to meet social demands and/or that they are more motivated than boys to cover up negative emotions with positive emotions in order to protect another’s feelings”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    Girls' greater tendency to express positive emotions may contribute to and be influenced by their greater prosocial behavior than boys.

    “Girls’ greater tendency to express positive emotions may contribute to and be influenced by their greater prosocial behavior than boys.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationcitation

    Boys' greater rates of externalizing emotion expressions such as anger in toddler/preschool years may be one contributing factor to higher rates of behavior problems in boys, a gender difference that appears around toddler/preschool age.

    “Boys’ greater rates of externalizing emotion expressions such as anger in the toddler/preschool years may be one contributing factor to the higher rates of behavior problems in boys, a gender difference that notably appears around the toddler/preschool age (Keenan & Shaw, 1997).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Keenan & Shaw, 1997 source
  • May combine two claims.

    Interpretationcitation

    For adolescent girls who account for the gender difference in externalizing emotion expression, there may be risk, such as links between alcohol/drug use and using anger to cope with stressors.

    “For those adolescent girls who account for the gender difference in externalizing emotions expression, there may be risk. For example, alcohol and drug use, which are on the rise in adolescent girls (Amaro et al., 2001), have been linked to the use of anger to cope with stressors (Wills, DuHamel, & Vaccaro, 1995).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Amaro et al., 2001 source
    • cites Wills et al., 1995

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationcitation

    An excessive tendency to display internalizing emotions may be a risk factor for psychological problems; for example, responding to stress with high fear and anxiety may lead to risk for anxiety disorders, which are more common in girls.

    “And, as with positive emotions, an excessive tendency to display internalizing emotions may be a risk factor for certain psychological problems. For example, if one responds to stress by experiencing and expressing high levels of fear and anxiety, this pattern may lead to risk for the development of anxiety disorders, several of which are more common for girls than boys (Ollendick & Yule, 1990).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Ollendick & Yule, 1990

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationcitation

    Boys may be more inclined to express anger-related emotions than girls with peers as part of their greater tendency to engage in rough and tumble play.

    “Boys may be more inclined to express anger-related emotions than girls with peers as part of their greater tendency to engage in rough and tumble play (Rose & Rudolph, 2006).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Rose & Rudolph, 2006

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationcitation

    Girls' efforts to appear cheerful even when unfelt may confer risk; if they internalize distress rather than express it, this could increase propensity for depression.

    “At the same time, girls’ (and women’s) efforts to be cheery, even when this cheeriness is unfelt (as in the “demand” tasks) may also confer risk (Chaplin & Cole, 2005; Keenan & Hipwell, 2005; Zahn-Waxler, Cole, & Barrett, 1991). If girls attempt to appear cheerful even when they are not, they may internalize feelings of distress rather than express them to achieve their goals for well-being, which”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites Chaplin & Cole, 2005

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

    • cites Keenan & Hipwell, 2005 source
    • cites Zahn-Waxler et al., 2007

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Interpretationreasoning

    The gender difference found in infancy for internalizing emotion expressions may not reflect gender differences in internal experience of internalizing emotions per se, but may reflect differences in negative emotions more generally or other non-emotional states.

    “the gender difference found in infancy for internalizing emotion expressions may not reflect gender differences in the internal experience of internalizing emotions per se, but instead may reflect differences in negative emotions more generally or differences in some other non-emotional state.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationreasoning

    Girls' patterns of emotion expression may contribute to their greater prosociality than boys, but could also confer risk increasing girls' likelihood of developing depression and anxiety symptoms.

    “Girls’ patterns of emotion expression may contribute to their greater prosociality than boys. However, this pattern could also confer risk that increases girls’ likelihood of developing symptoms of depression and anxiety.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Gender differences have been found for some traits in adulthood, with women reporting greater anxiety/neuroticism and gregariousness and men reporting greater assertiveness; these differences parallel the meta-analytic findings for internalizing, positive, and externalizing emotion expressions.

    “gender differences have been found for some traits in adulthood, with women reporting somewhat greater anxiety/neuroticism and gregariousness than men and men reporting greater assertiveness than women (Feingold, 1994); differences that parallel our findings of gender differences in internalizing, positive, and externalizing emotion expressions.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Feingold, 1994 source
  • May combine two claims.

    Study design and conductreasoning

    A number of studies were excluded because authors did not provide enough information to calculate effect sizes, which could have biased results because studies with null results sometimes leave out this information.

    “There also were a number of studies that were excluded because the authors did not provide enough information to calculate effect sizes. This could have biased our results because studies with null results sometimes leave out this information.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Study design and conductnone given

    The review was limited to observational studies of emotion expression.

    “our review was limited to observational studies of emotion expression.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Interpretationcitation

    Among children of Asian heritage, there may be socialization pressure for all children to control emotions, potentially leading both girls and boys to suppress emotion expressions and attenuating the ability to detect gender differences.

    “For example, among children of Asian heritage there may be socialization pressure for all children to control emotions, potentially leading both girls and boys to suppress emotion expressions, possibly attenuating the ability to detect gender differences (Cole & Tan, 2007).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Cole & Tan, 2007
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    The review did not assess gender differences in strategies used to regulate emotion.

    “Our review was also limited to studies of emotion expression and did not assess gender differences in strategies used to regulate emotion.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Study design and conductreasoning

    The authors attempted to counter this bias by including all studies of emotion expression, not just those that examined gender differences.

    “We attempted to counter this bias by including all studies of emotion expression, not just those that examined gender differences.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Study design and conductown data

    There were small cell sizes in some analyses, particularly relatively few observational studies of emotion in adolescents.

    “Another limitation of this review is the small cell sizes in some of our analyses. In particular, there were relatively few observational studies of emotion in adolescents”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationreasoning

    The findings underscore the importance of examining contextual factors influencing gender differences in emotion expressions across child and adolescent development.

    “Overall, our findings underscore the importance of examining contextual factors influencing gender differences in emotion expressions across child and adolescent development.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Personality traits such as neuroticism and extraversion are related to individual differences in patterns of emotion experience and expression.

    “Personality traits, such as neuroticism and extraversion, are related to individual differences in patterns of emotion experience and expression (Revelle & Scherer, 2009).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Revelle & Scherer, 2009

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Study design and conductown data

    Most studies in the meta-analysis consisted of primarily Caucasian samples, preventing examination of differences between ethnic groups.

    “most of the studies in the present meta-analysis consisted of primarily Caucasian samples, which prevented us from examining differences between ethnic groups”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Premisecitation

    Gender roles for emotion expression may differ in different ethnic groups.

    “which is important, since gender roles for emotion expression may differ in different ethnic groups (Cole & Tan, 2007).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Cole & Tan, 2007
  • May combine two claims.

    Study design and conductown data

    The review included studies that measured emotion expression in various ways (frequency, duration, intensity) and could not disentangle these measurements.

    “our review included studies that measured emotion expression in a variety of ways, including the frequency, duration, and intensity of expression. It was not possible to disentangle these different measurements in the present study”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    There is great variability not only between boys and girls but also within boys and girls in emotion expression.

    “As in all studies of gender differences, it is important to note that there is great variability not only between boys and girls, but also within boys and girls (see Hyde, 2005).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Hyde, 2005

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

122 of 122
  • The paper relies on this without support.

    Observed emotional expression is studied less often than self- or parent-report, and when observed, it does not consistently show gender differences.

    “Observations of emotional expression are less commonly conducted; and when they are, the observed emotions do not always show such consistent gender differences”
  • The authors state this as an assumption.

    The effect sizes were sampled from a universe of possible sample sizes.

    “We assumed that our effect sizes were sampled from a universe of possible sample sizes.”
  • The authors state this as an assumption.

    Effect sizes differ from the population by sampling error plus random variability among the studies.

    “as they assume that effect sizes differ from the population by sampling error plus random variability among the studies”
3 of 3

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • A recent review shows that sex differences in expression of various emotions only begin to emerge through school-age and adolescence.

    “A recent review on emotional expressions in childhood and adolescence shows that the sex differences in expression of various emotions only begin to emerge through school-age and adolescence (Chaplin & Aldao, 2013).”

    From Bodily maps of emotions are culturally universal (2020) · cites this paper as Chaplin & Aldao, 2013

    The Discussion (Age; page not provided) reports that differences in positive and general negative emotion expression emerged in childhood, supporting part of the claim. But it also reports differences in internalizing emotions in infancy and externalizing emotions by the toddler/preschool period, so they did not only begin in school age or adolescence. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Some studies indicated no sex differences in negative emotions such as self-reported anger, negative emotion, and powerful emotions.

    “However, there were also studies that indicated no sex differences regarding Negative emotions (self-reported anger, negative emotion, powerful emotions; Archer, 2004; Chaplin & Aldao, 2013; Fischer et al., 2004).”

    From A Systematic Review and New Analyses of the Gender-Equality Paradox (2025) · cites this paper as Chaplin & Aldao, 2013

    The Results (Hypothesis 1; page unavailable) report no significant sex difference in observed general negative emotion expression in children. The same section reports a significant, though very small, difference in observed anger expression favoring boys. The paper examines observed expressions rather than self-reported anger, and these passages do not address “powerful emotions.” (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Females reported higher levels of internalizing emotions such as guilt, shame, crying, and fear than males, with SMDs of 0.12-1.11.

    “Regarding Negative emotions, females reported higher levels of internalizing emotions, such as guilt, shame, crying, and fear (SMDs = 0.12–1.11; Chaplin & Aldao, 2013; Else-Quest et al., 2010; Fischer et al., 2004; van Hemert et al., 2011)”

    From A Systematic Review and New Analyses of the Gender-Equality Paradox (2025) · cites this paper as Chaplin & Aldao, 2013

    The Results and Discussion report that girls showed more observed internalizing emotion expressions than boys, including fear and shame. But this meta-analysis concerns observed expressions, not females’ self-reported levels; the Method says guilt could not be analyzed, and it does not establish the claim about crying or the stated SMD range of 0.12–1.11. The Discussion mentions a separate meta-analysis of self-reported shame and guilt, but that does not support attributing the full claim to this paper. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • For negative emotions where females score higher, higher living conditions predict that females express and feel even more negative emotions such as guilt and crying compared with men.

    “For those cases in which there is an overall sex difference such that females score higher on Negative emotions, higher living conditions seem to predict that they express and feel even more negative emotions (e.g., guilt and crying) compared with men (Archer, 2004; Chaplin & Aldao, 2013; Else-Quest et al., 2012; Fischer et al., 2004; Maes et al., 2019; McDuff et al., 2017; van Hemert et al., 2011”

    From A Systematic Review and New Analyses of the Gender-Equality Paradox (2025) · cites this paper as Chaplin & Aldao, 2013

    The Results (Hypothesis 1; page not provided) find that girls expressed slightly more internalizing negative emotions than boys, and the Discussion (The Role of Specific Emotions; page not provided) reports higher self-reported guilt among adolescent females. The paper does not establish that higher living conditions predict a larger difference, nor does it report that females both express and feel more guilt and crying under those conditions. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Women have higher levels of happiness and smile more than men, with SMD = 0.10.

    “For Positive emotions, women have higher levels of happiness and smile more (SMD = 0.10; Chaplin & Aldao, 2013; McDuff et al., 2017).”

    From A Systematic Review and New Analyses of the Gender-Equality Paradox (2025) · cites this paper as Chaplin & Aldao, 2013

    The Results (Hypothesis 1; page unavailable) report that girls aged 0–17 expressed slightly more positive emotion than boys, with Hedges’ g = −0.08. The paper does not establish higher happiness levels in women or a significant difference specifically in smiling; its reported effect is not SMD = 0.10. (LLM, conf=0.89)

    Experimental — accuracy not yet measured

Cites

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Authors
Chaplin, T. M., & Aldao, A.
Affiliations
Yale University (US)
Corresponding author
Chaplin, Tara M.
Venue
Psychological Bulletin
Published
2013
Volume
139
Issue
4
Pages
735-765
ISSN
  • 0033-2909 (ISSN-L)
  • 1939-1455
OpenAlex
W2156233592
Cited by
1,247
References
309
Citations by year
2026: 153 · 2025: 161 · 2024: 133 · 2023: 123 · 2022: 104 · 2021: 103 · 2020: 139 · 2019: 76 · 2018: 69 · 2017: 71 · 2016: 46 · 2015: 38 · 2014: 22 · 2013: 7 · 2012: 1
FWCI
24.66
Type
journal article
Language
en
Open access
Locations
  • Psychological Bulletin (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (K01DA024759)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
  • Social Sciences › Psychology › Social Psychology › Emotions and Moral Behavior
  • Social Sciences › Gender Studies › Gender Roles and Identity Studies
Keywords
gender differences, emotional expression, children, facial expressions, vocal expression, behavioral expression, positive emotions, age differences, interpersonal context, parent-child interaction, peer interaction, adolescence, middle childhood, toddlerhood
MeSH terms
Adolescent, Age Factors, Analysis of Variance, Child, Child Behavior, Child Development, Child, Preschool, Emotions, Female, Gender Identity, Humans, Infant, Male, Models, Theoretical, Regression Analysis, Sex Characteristics, Socialization, Adolescent Development

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