The DOI matches its Crossref record; 84 of the 86 references it cites were found in a registry or an index; none of the 66 sources its claims cite is checked for support yet.
Are There Executive Dysfunction Subtypes Within ADHD?
Open accessAbstract
Objective: Children with ADHD have heterogeneous behavioral and neuropsychological profiles. The aim of this study was to examine the possible utility of executive function (EF) subtypes within ADHD. Method: Participants were 357 children aged 6 through 13 with a diagnosis of ADHD. Children completed a brief laboratory battery measuring EF, including response inhibition, response variability, speed, and set-shifting. Children also completed standardized intelligence and achievement testing. Results: Two-way cluster analysis of EF profiles of children with ADHD produced a three-cluster solution, labeled poor inhibitory control, poor set-shifting/speed, and intact task performance. Clusters significantly differed in measures of intelligence, academic achievement, and other disruptive behavior and anxiety/mood symptoms. Conclusion: These findings further support the idea that children with ADHD have heterogeneous EF profiles and suggest that the theory of ADHD should consider these individual differences in EF profiles within the ADHD diagnostic category.
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Claims the paper makes
34 Not checked yet · 32 Own result · 11 Own interpretation · 9 Own method · 1 No basis given
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“For the two-step cluster analysis in SPSS and based on the Log-likelihood distance measure, a 3-cluster provided the best fit to the data (BIC=810.3, LL=1.92).”
- Also stated in: § Results · plain
“Two-way cluster analysis of EF profiles of children with ADHD produced a three-cluster solution, labeled poor inhibitory control, poor set-shifting/speed, and intact task performance.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > Cluster/Profile Solution
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- Also stated in: § Results · plain
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“As indicated in Table 2, approximately half of each cluster was diagnosed with the ADHD-C subtype, in line with idea that the current DSM-IV ADHD subtypes do not reliably parse EF heterogeneity within ADHD.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Cluster 2 (n=93, 26% of the total sample) was characterized by relatively poor response inhibition, henceforth termed “poor response inhibition,””
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > Cluster/Profile Solution
plainn = 93- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Academic achievement was significantly lower in the poor set-shifting/speed cluster compared to the intact performance cluster (p<.01).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Cluster 1 (n=65, 18% of the total sample) was characterized by relatively poor performance on the Trails A and B task, henceforth termed “poor speed/set-shifting.””
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > Cluster/Profile Solution
plainn = 65- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Based on these replication analyses, a 3-cluster solution was supported 53% of the time compared to 2-cluster and 4-cluster solutions, which were supported 43% and 5% of the time respectively.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > Cluster/Profile Solution
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“MDD symptoms were significantly higher in the intact task performance cluster compared to the other clusters (p<.05, η2=.05).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Cluster 3 (n=199, 56% of the total sample) was characterized by children with relatively intact task performance, henceforth termed “intact.””
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > Cluster/Profile Solution
plainn = 199- Asserted: passes — The authors put it forward as true.
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- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“however the intact task performance group was significantly older (F[2,356]=17.75, p=<.001, η2=.09) than the two EF dysfunction groups.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The MANOVA conducted to examine mean cluster differences in ADHD, ODD, CD, GAD and MDD symptoms was significant (F[12,572]=4.78, p=<.001, η2=.09).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
- It may state two separate claims as one. 25
- Probably not a substantial claim. 16
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“ANOVA indicated significant cluster differences in intelligence (F[2, 351]=7.04, p=.001, η2=.04) with the poor set-shifting/speed cluster exhibiting significantly lower intelligence than the other two clusters (p<.05).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“although—at a descriptive level—both executive dysfunction groups had more symptoms than the intact task performance cluster.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“It should be noted that the two-cluster solution, supported 43% of the time, was characterized by an intact task performance cluster and an EF dysfunction cluster. The EF dysfunction cluster displayed weaker performance on all executive function tasks as compared to the intact task performance group.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > Cluster/Profile Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“MANOVA indicated significant cluster differences in academic achievement (F[6,430]=2.93, p=.008, η2=.04), with significant follow-up ANOVAs for spelling (F [2,216]=6.01, p=.003, η2=.05) and mathematics (F [2, 216]=6.60, p=.002, η2=.06), but not for reading (F [2,216]=2.67, p=.071, η2=.02).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“but not inattentive ADHD symptoms (F[2, 293]=.705, p=.495, η2=.01) or GAD symptoms (F[2, 290]=.83, p=.439, η2=.01).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“At a descriptive level, the response inhibition cluster exhibited slightly lower academic achievement than the intact task performance cluster, although this difference was not statistically significant.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Follow-up ANOVAs revealed significant cluster differences in ODD symptoms (F[2,290]=6.23, p=.002, η2=.04), CD symptoms (F[2,290]=14.23, p=<.001, η2=.09), MDD symptoms (F[2,290]=7.30, p=.001, η2=.05), and hyperactive-impulsive ADHD symptoms (F[2,293]=7.15, p=.001, η2=.05)”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The clusters did not differ on the variables of gender or ethnicity;”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“However, they also did not exhibit academic problems or sub-par intelligence.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Based on the current battery, these subtypes were poor set-shifting/speed, poor inhibitory control, and relatively intact task performance.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“In line with prior work (Nigg, Willcutt, Doyle, & Sonuga-Barke, 2005; Willcutt, et al., 2005), there appear to be at least two EF subtypes within ADHD, and possibly more.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Nigg, Willcutt, Doyle, & Sonuga-Barke, 2005
- Not checked yetcites Willcutt, et al., 2005
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The poor set-shifting/speed subgroup experienced lower academic achievement, lower intelligence, and increased ODD and hyperactive-impulsive ADHD symptoms compared to other children with ADHD.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, there may be at least a subgroup of children with ADHD who have intact task performance, although it should be noted that we cannot rule out that this group had some other type of deficit.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“There may be three EF subgroups within ADHD, and they may exhibit somewhat distinct profiles of comorbid problems, including academic achievement.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
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- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“EF are characterized by unity and diversity, meaning that they are both overlapping, and yet distinct (Miyake et al., 2000)”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > Abstract > Conclusion
What the sources say
- Not checked yetcites Miyake et al., 2000
plaincorrelational- Asserted: passes — The authors put it forward as true.
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- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“The STOP task has been has been well-validated, has an alpha reliability greater than .80, and is used to measure the ability to suppress a motor response on cue (Band, van der Molen, & Logan, 2003; Logan, 1994).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Measures
What the sources say
- Not checked yetcites Band et al., 2003
- Not checked yetcites Logan, 1994
boosted- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Children were administered a reliable three-subtest short form of the Wechsler Intelligence Scale for Children-Third Edition (WISC-III, prior to 2003) or Fourth Edition (WISC-IV) comprised of the Block Design, Information, and Vocabulary subtests of the WISC-IV (Sattler, 2008; Wechsler, 1991; 2003).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Measures
What the sources say
- Not checked yetcites Sattler, 2008
- Not checked yetcites Wechsler, 1991
- Not checked yetcites Wechsler, 2003
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“This measure requires the participant to trace letters and numbers as quickly as possible without errors and is an index of frontal lobe integrity (Reitan, 1958; Spreen & Strauss, 1991) and has demonstrated high inter-rater reliability as well as alternate forms of reliability ranging from .78 to .92 (Bowie & Harvey, 2006).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Measures
What the sources say
- Not checked yetcites Reitan, 1958
- Not checked yetcites Spreen & Strauss, 1991
- Not checked yetcites Bowie & Harvey, 2006
boosted- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Fidelity to interview procedure was checked by having the interview recorded with 5 % reviewed by a certified trainer.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Measures
plain- Asserted: passes — The authors put it forward as true.
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- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“ADHD is associated with learning problems and learning disorders with 20 to 30 percent of children with ADHD exhibiting a diagnosable learning disorder (Hinshaw, 1992; Mayes, Calhoun & Crowell, 2000)”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > Abstract > Conclusion
What the sources say
- Not checked yetcites Hinshaw, 1992
- Not checked yetcites Mayes et al., 2000
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Further validation of the cluster solution was conducted using a validation method in which 50% of the cases were randomly selected 100 times and two-step cluster analysis was performed on the subsamples.”
- Also stated in: § Cluster/Profile Solution · plain
“In order to validate the reliability of the 3-cluster solution using a validation method in which 50% of cases were randomly selected, and two-way cluster analysis was performed 100 times on the subsamples.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Data Analysis
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
- Also stated in: § Cluster/Profile Solution · plain
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Parents of children taking psycho-stimulant medication were asked to consult with a physician about discontinuing medication for 24 to 48 hours prior to the laboratory visit to ensure a more accurate measure of cognitive performance.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Procedure
plaindirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
None of the sources cited for this claim have been checked yet.
In the paper
“EF impairment, particularly set-shifting, is associated with academic problems (Biederman et al., 2004; Bull & Scerif, 2001; Gathercole & Pickering, 2000) and lower intelligence (Mahone et al., 2002)”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > Abstract > Conclusion
What the sources say
- Not checked yetcites Biederman et al., 2004
- Not checked yetcites Bull & Scerif, 2001
- Not checked yetcites Mahone et al., 2002
plaincorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
In the paper
“Anxiety disorders are also highly associated with ADHD (Angold, Costello, & Erkanli, 1999)”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > Abstract > Conclusion
What the sources say
- Not checked yetcites Angold et al., 1999
boostedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Additionally, shared method variance (in that multiple measures came from the same task) might have influenced cluster characteristics.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Further, some work has suggested that EF questionnaires may be more sensitive to EF impairments than psychological tests (Barkley & Murphy, 2010).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Barkley & Murphy, 2010
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“EF profiles may have promise as an alternative subtyping approach with important implications for assessment of children with ADHD.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“and may exhibit EF impairment in areas not assessed in the current study or in other domains not assessed in the present study (e.g., relationships, self esteem).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it. It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“although these differences are likely to be clinically significant due to the current DSM subtyping approach that relies on small differences in symptoms to determine subtypes, or presentations (APA, 2000; 2013).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites APA, 2000
- Not checked yetcites [2013]
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: unclear — It is unclear whether it could be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Additionally, our use of a 3-subtest IQ test may have led to overestimates of IQ in children with ADHD.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“As an example, training of executive functioning, such as working memory and speed, have proven promising for some children with ADHD (Klingberg, et. al, 2005; Mackey, Hill, Stone & Bunge, 2011).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Klingberg, et. al, 2005
- Not checked yetcites Mackey, Hill, Stone & Bunge, 2011
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
None of the sources cited for this claim have been checked yet.
In the paper
“That is, poor set-shifting ability may limit children’s ability to think flexibly and multi-task, important components of their ability to flexibly adapt to their surroundings (Hill, 2004; Wechsler, 1971).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Hill, 2004
- Not checked yetcites Wechsler, 1971
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Thus, the task performance assessment of EF and abbreviated assessment of IQ in the present study may be considered a limitation.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedged- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim.
None of the sources cited for this claim have been checked yet.
In the paper
“The current study’s results support the idea that there are EF subtypes within the ADHD diagnostic category and suggest that the EF subtypes may merit further attention in assessment and diagnosis of ADHD for DSM-V (Nigg, Rohde, & Todd, 2008; Nigg, Willcutt, Doyle, & Sonuga-Barke, 2005).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Nigg, Rohde, & Todd, 2008
- Not checked yetcites Nigg, Willcutt, Doyle, & Sonuga-Barke, 2005
hedgedcorrelational- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“This—in turn—has implications for etiological study of ADHD such that EF impairment could be a primary deficit, or possible endophenotype, in a subgroup of children with ADHD (Doyle, et al., 2005; Nigg, Willcutt, Doyle, & Sonuga-Barke, 2005).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Doyle, et al., 2005
- Not checked yetcites Nigg, Willcutt, Doyle, & Sonuga-Barke, 2005
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
It may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“These findings are in line with work suggesting that EF deficits contribute to academic underachievement in children with ADHD (Biederman, et al., 2004; Bull, Espy, & Wiebe, 2008), as well as comorbid symptomatology (Coolidge, Thede, & Young, 2000; Fischer, Barkley, Smallish, & Fletcher, 2005).”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
What the sources say
- Not checked yetcites Biederman, et al., 2004
- Not checked yetcites Bull, Espy, & Wiebe, 2008
- Not checked yetcites Coolidge, Thede, & Young, 2000
hedgeddirect- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“EF assessment in children with ADHD may allow more tailored academic intervention approaches tailored to children’s individual needs, based on their EF profile.”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > DISCUSSION
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: fails — It may be too vague to check against evidence.
- Load-bearing: passes — The paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. It may be too vague to check against evidence.
The paper relies on this without support.
The community-recruited sample of children with ADHD is representative of the broader population of children with ADHD, so the identified executive function clusters can be generalized to the ADHD diagnostic category.
“Participants were 357 children, between the ages of 6 and 13, recruited through the community who completed an extensive, multi-stage, diagnostic screening procedure.”
“there is support for the existence of EF clusters within the ADHD diagnostic category.”
The paper relies on this without support.
The abbreviated executive function battery used in this study adequately captures the full range of executive function abilities relevant to ADHD subtyping.
“The present study seeks to further evaluate whether EF subtypes are identifiable within ADHD using an abbreviated battery of EF measures that might be easily utilized in clinical practice.”
“there appears to be three EF impairment clusters, or subtypes, within the present sample, based on the short EF battery utilized.”
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?
The cited source says what the claim attributes to it.
In the citing paper
“These cognitive deficits are also heterogeneous in ADHD and thus individual differences in cognitive profile should be considered as well [7].”
From ADHD subtype-specific cognitive correlates and association with self-esteem: a quantitative difference (2020) · cites this paper as [7]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Participants
“All children included in the current study met DSM-IV criteria for ADHD as outlined below”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Participants
“Fifty-five children exhibited subthreshold ADHD symptoms (i.e., exhibited five symptoms of ADHD or exhibited cross-situational manifestation of symptoms) and were retained in analyses”
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > RESULTS > External Validation of the 3-Cluster Solution
“the intact task performance group was significantly older (F[2,356]=17.75, p=<.001, η2=.09) than the two EF dysfunction groups”
§ Are There Executive Dysfunction Subtypes within Attention-Deficit/Hyperactivity Disorder? > METHOD > Participants
“Participants were 357 children, between the ages of 6 and 13”
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Metadata
- Authors
- Roberts, B. A., Martel, M. M., & Nigg, J. T.
- Affiliations
- University of Kentucky (US)
- Oregon Health & Science University (US)
- Corresponding author
- Roberts, Bethan A.
- Venue
- Journal of Attention Disorders
- Publisher
- SAGE Publications
- Published
- 2016-07-28
- Volume
- 21
- Issue
- 4
- Pages
- 284-293
- ISSN
- 1087-0547 (ISSN-L)
- 1557-1246
- PMC
- PMC4303540
- OpenAlex
- W2088570949
- Semantic Scholar
- be2015f004071bcc87d0f0ef1f5f2595ad6f04db
- Cited by
- 116
- References
- 86
- Citations by year
- 2026: 8 · 2025: 14 · 2024: 12 · 2023: 12 · 2022: 9 · 2021: 8 · 2020: 11 · 2019: 14 · 2018: 10 · 2017: 6 · 2016: 3
- FWCI
- 2.83
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Attention Disorders (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Mental Health (R37MH059105, R01MH059105)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
- Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Keywords
- attention deficit hyperactivity disorder, executive function, response inhibition, set-shifting, processing speed, response variability, clustering, children, intelligence, academic performance, disruptive behavior
- MeSH terms
- Academic Performance, Achievement, Adolescent, Analysis of Variance, Attention Deficit Disorder with Hyperactivity, Child, Female, Humans, Intelligence, Male, Neuropsychological Tests, Cluster Analysis, Executive Function
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
A language model drew the claims from the paper on 2026-10-05, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).
A second model labelled each claim on 2026-10-05 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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