Cited by 207Neural and Behavioral Psychology StudiesChild and Adolescent Psychosocial and Emotional DevelopmentPsychopathy, Forensic Psychiatry, Sexual Offending

Adolescents’ cognitive capacity reaches adult levels prior to their psychosocial maturity: Evidence for a “maturity gap” in a multinational, cross-sectional sample

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Icenogle, Grace, Steinberg, Laurence, Duell, Natasha, Chein, Jason, Chang, Lei, Chaudhary, Nandita, Di Giunta, Laura, Dodge, Kenneth A. +12 more·2019·Law and Human Behavior

Abstract

All countries distinguish between minors and adults for various legal purposes. Recent U.S. Supreme Court cases concerning the legal status of juveniles have consulted psychological science to decide where to draw these boundaries. However, little is known about the robustness of the relevant research, because it has been conducted largely in the U.S. and other Western countries. To the extent that lawmakers look to research to guide their decisions, it is important to know how generalizable the scientific conclusions are. The present study examines 2 psychological phenomena relevant to legal questions about adolescent maturity: cognitive capacity, which undergirds logical thinking, and psychosocial maturity, which comprises individuals' ability to restrain themselves in the face of emotional, exciting, or risky stimuli. Age patterns of these constructs were assessed in 5,227 individuals (50.7% female), ages 10-30 (M = 17.05, SD = 5.91) from 11 countries. Importantly, whereas cognitive capacity reached adult levels around age 16, psychosocial maturity reached adult levels beyond age 18, creating a "maturity gap" between cognitive and psychosocial development. Juveniles may be capable of deliberative decision making by age 16, but even young adults may demonstrate "immature" decision making in arousing situations. We argue it is therefore reasonable to have different age boundaries for different legal purposes: 1 for matters in which cognitive capacity predominates, and a later 1 for matters in which psychosocial maturity plays a substantial role. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

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  • Behavioral research has demonstrated for decades that by mid-adolescence, young people are comparable to adults in their ability to make deliberative decisions, including working memory, logical reasoning, weighing risks and benefits, and anticipating consequences of their actions.

    “Specifically, behavioral research has demonstrated for decades that by mid-adolescence, young people are comparable to adults in their ability to make deliberative decisions, including specific abilities in working memory, logical reasoning, weighing risks and benefits, and anticipating consequences of their actions (Icenogle et al., 2019; Reyna et al., 2015; Steinberg, 2013).”

    From The role (and limits) of developmental neuroscience in determining adolescents' autonomy rights: The case for reproductive and voting rights (2024) · cites this paper as Icenogle et al., 2019

    The Discussion (Limitations and Future Directions; page unavailable) says basic cognitive processes reach adult levels around age 16 and that adolescents’ decisions in deliberative contexts would, on average, be as logical as adults’. The Abstract identifies working memory as a cold-cognition skill, but it says future orientation continues to improve into adulthood; the Overview and Rationale also treats sensitivity to costs and rewards as part of psychosocial maturity. The source therefore does not establish adult-level ability by mid-adolescence across every skill listed, particularly anticipating consequences and weighing risks and benefits. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • In contexts of reasoned decision making where peer pressure and opportunities for sensation seeking are minimized, adolescents' capacities for decision making are indistinguishable from adults at and before age 16.

    “In contexts of reasoned decision making where peer pressure and opportunities for sensation seeking are minimized, adolescents’ capacities for decision making are indistinguishable from adults at and before age 16, the target age for most voting expansion initiatives (Icenogle et al., 2019; Steinberg et al., 2009).”

    From The role (and limits) of developmental neuroscience in determining adolescents' autonomy rights: The case for reproductive and voting rights (2024) · cites this paper as Icenogle et al., 2019

    The Discussion (Limitations and Future Directions; page not provided) says that cognitive processes supporting deliberative decisions reach adult levels around age 16 and that 16-year-olds’ decisions in such contexts would, on average, be as logical as adults’. The Results (Full Sample Age Trends; page not provided) report little change in cognitive capacity after 16, but do not establish that adolescents generally have adult-level capacity before that age. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Adolescents have demonstrated capacity to make deliberative decisions.

    “adolescents have demonstrated capacity to make deliberative decisions (Icenogle et al., 2019; Reyna et al., 2015; Steinberg, 2013).”

    From The role (and limits) of developmental neuroscience in determining adolescents' autonomy rights: The case for reproductive and voting rights (2024) · cites this paper as Icenogle et al., 2019

    The Abstract says juveniles may be capable of deliberative decision-making by age 16, and the Discussion links this to cognitive capacity in situations that allow reflection. But the Discussion’s limitations state that the study did not directly test decision-making capacity, so saying adolescents have demonstrated that capacity overstates its evidence. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 5

  1. Davis SM, Scott ES, Wadlington W, & Whitebread CH (2009). Children in the legal system: Cases and materials (4th ed.). New York, NY: Foundation Press.
  2. Duckworth AL & Gross JJ (2014). Self-control and grit: Related but separable determinants of success. Current Directions in Psychological Science, 23, 319– 325. doi: 10.1177/0963721414541462 26855479 PMC4737958 · DOI · Paper page
  3. Muthén LK, & Muthén BO (1998–2010). Mplus User’s Guide. Sixth Edition Los Angeles, CA: Muthén & Muthén.
  4. Preston CB & Crowther BT (2012). Infancy doctrine inquiries. Santa Clara Law Review, 52, 47– 80.
  5. Schiraldi V, Western B, & Bradner K (2015). Community-based responses to justice-involved young adults New Thinking in Community Corrections Bulletin. Washington: U.S. Department of Justice, National Institute of Justice

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Authors
Icenogle, G., Steinberg, L., Duell, N., Chein, J., Chang, L., Chaudhary, N., Di Giunta, L., Dodge, K. A., Fanti, K. A., Lansford, J. E., Oburu, P., Pastorelli, C., Skinner, A. T., Sorbring, E., Tapanya, S., Uribe Tirado, L. M., Alampay, L. P., Al-Hassan, S. M., Takash, H. M. S., & Bacchini, D.
Affiliations
  • Temple University (US)
  • University of Macau (MO)
  • University of Delhi (IN)
  • Duke University (US)
  • University of Cyprus (CY)
  • Global TIES for Children (US)
  • Sapienza University of Rome (IT)
  • University West (SE)
  • Chiang Mai University (TH)
  • Ateneo de Manila University (PH)
  • Hashemite University (JO)
  • University of Naples Federico II (IT)
Venue
Law and Human Behavior
Published
2019-02
Volume
43
Issue
1
Pages
69-85
ISSN
  • 0147-7307 (ISSN-L)
  • 1573-661X
OpenAlex
W2913731067
Cited by
207
References
66
Citations by year
2026: 42 · 2025: 25 · 2024: 31 · 2023: 29 · 2022: 31 · 2021: 22 · 2020: 20 · 2019: 6
FWCI
11.47
Type
journal article
Language
en
Open access
Locations
  • Law and Human Behavior (publishedVersion, other-oa)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Funders
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (RO1-HD054805)
  • Klaus J. Jacobs Foundation
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
  • Social Sciences › Psychology › Clinical Psychology › Psychopathy, Forensic Psychiatry, Sexual Offending
Keywords
cognitive ability, psychosocial maturity, maturity gap, adolescent development, age of majority, self-control, impulsivity, cross-cultural comparison
MeSH terms
Adolescent, Adolescent Behavior, Psychology, Adolescent, Adult, Child, China, Cognition, Colombia, Cross-Sectional Studies, Cyprus, Decision Making, Female, Humans, India, Italy, Jordan, Kenya, Longitudinal Studies, Male, Philippines, Surveys and Questionnaires, Regression Analysis, Sweden, Thailand, United States, Age Distribution, Minors, Supreme Court Decisions, Adolescent Development, Young Adult

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