Cited by 105Attention Deficit Hyperactivity DisorderBehavioral Health and InterventionsBehavioral and Psychological Studies

The DOI matches its Crossref record; 75 of the 76 references it cites were found in a registry or an index; 4 of the 26 sources its claims cite were checked for support.

Implementation Intentions Facilitate Response Inhibition in Children with ADHD

Open access
Gawrilow, Caterina, Gollwitzer, Peter M.·2008·Cognitive Therapy and Research

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

Two experiments with boys with ADHD found that if-then implementation intentions improved response inhibition on a Go/No-Go task, bringing ADHD children to control levels in Study 1 and combining with methylphenidate for the highest performance in Study 2. The strategy did not slow Go-trial responses and effects were not explained by task commitment.

Key findings

  • Study 1: ADHD boys who formed implementation intentions inhibited responses on 89.90% (SD = 5.84) of stop trials versus 78.26% (SD = 9.65) for goal intentions, t(28) = 4.05, p < .001; control children did not differ by intention condition (89.44% vs. 87.34%, t < 1, ns). ADHD goal-intention children were lower than controls, t(28) = 2.28, p < .05, but ADHD implementation-intention children did not differ from controls, t < 1, ns.
  • Study 2: Intention × Medication interaction, F(1, 19) = 5.78, p < .05. With MPH, implementation intention yielded 89.61% (SD = 4.89) inhibition versus 72.01% (SD = 27.46) for goal intention, t(19) = 2.27, p < .05; without MPH, no significant intention effect (86.02% vs. 78.07%, t < 1, ns). Implementation intention with MPH improved from 86.02% to 89.61%, t(19) = 2.05, p = .06.
  • Combined meta-analysis of Studies 1 and 2: medium effect, d = 0.48, N = 50, k = 2, homogeneous, χ²(1) = 0.19, ns, significant, 95% CI = −0.08 to 1.0, p = 0.04. No response-time cost: Study 1 ADHD implementation-intention RT was 620.56 ms versus 687.28 ms for goal intention; Study 2 MPH sped RTs (610.95 ms vs. 659.61 ms, F(1, 19) = 19.41, p < .001). Task commitment did not differ between intention conditions.

Methods

  • Study 1: 58 male children, ages 8.4–14.1 years (M = 11.2, SD = 1.3); 30 with ADHD (ICD-10 Hyperkinetic Disorder F90.0; 13 MPH-medicated, 17 not) and 28 nonclinical controls; randomized to goal versus implementation intention; completed a classification + Go/No-Go task (300 trials, 100 stop trials); analyzed response inhibition and RT with ANOVA/ANCOVA.
  • Study 2: 20 boys with ADHD, ages 8–14 years (M = 11.15, SD = 1.65), receiving MPH 15–20 mg; within-subject medication (48-h washout, then after MPH) crossed with between-subject goal versus implementation intention; same task; measured inhibition, RT, and task commitment; used ANOVA, t-tests, and ANCOVA.
  • Measures: main dependent variable was mean frequency of response inhibition (% correct stops); secondary measure was classification RT; Study 1 included parent CBCL ratings; Study 2 included a task commitment questionnaire.

Limitations

  • Authors state sample homogeneity: only boys participated, so it is unclear whether girls with ADHD would benefit similarly; many participants had comorbid disorders, which the authors argue supports generalizability but requires future subgroup study.
  • Authors state control children without ADHD could not profit because the task was too easy for them (near 90% inhibition already in the goal-intention condition), and intellectual ability was not assessed, leaving unclear whether effects depend on task difficulty or IQ.
  • Authors note Study 2’s repeated task may create practice effects; they argue this threatens external rather than internal validity. Evident from the text: Study 2 had no placebo and medication was always administered after the no-medication session, so order/expectancy effects cannot be fully separated; Study 1 also had no no-intention control group, which the authors justify by prior findings.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1007/s10608-007-9150-1

Cites

75 of 75 references verified0 citation errors · 0 not checkable

Statistics

26 tests recomputed · 0 with the reported and recomputed p on opposite sides of .05

Verification

Claims the paper makes

26 Own result · 19 Own interpretation · 10 No full text of the sources · 9 Own method · 5 Sources not found · 3 Not checked yet · 3 No basis given · 2 Supported · 1 Supported so far · 1 Partly supported · accuracy not yet measured

Show all 50 claims

  • It may state two separate claims as one. 22
  • Probably not a substantial claim. 12
29 of 29
  • The paper relies on this without support.

    The new classification task combined with a Go/No-Go task validly measures response inhibition in children with ADHD.

    “For the two studies reported in this paper, we developed a new task paradigm (i.e., a classification task combined with a Go/No-Go task) modeled after both the CPT and the SST.”
  • The paper relies on this without support.

    Medication status (MPH) did not confound the effect of implementation intentions in Study 1.

    “Within the ADHD group, 13 children were medicated with one form of methylphenidate (MPH), whereas the remaining 17 children were not medicated with MPH at the time of investigation.”
  • The paper relies on this without support.

    Parents would be more willing to participate in a study requiring discontinuation of medication during summer holidays than during the school year.

    “We conducted Study 2 during the summer holidays of 2004, reasoning that parents would be more willing to participate in a study that requires discontinuation of medication during holidays as opposed to during the school year.”
  • The paper relies on this without support.

    Parents accurately reported that their children had not received any psychostimulant medication 48 h prior to testing.

    “In addition, we quizzed each parent(s) in an interview to make sure that the children had not received any psychostimulant medication 48 h prior to testing.”
  • The paper relies on this without support.

    Parents complied with the instruction that no fatty meal be eaten on the day of the experiment.

    “no fatty meal should be eaten on the day of the experiment.”
  • The authors state this as an assumption.

    The potential practice effect from performing the task twice is the same across the goal/implementation intention conditions and the medication/no medication conditions.

    “However, as this potential practice effect should be the same in the goal intention/implementation intention condition as well as the medication/no medication condition, we only observed an interaction effect of intention condition and medication.”
  • The paper relies on this without support.

    Children actually received their MPH medication from their parents during the break.

    “During this break, participants received their medication (MPH) from their parents, and thereafter watched a cartoon (The Call of the Simpsons, Groening, 1990).”
7 of 7

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?

Statistics that don’t add up

Each reported p-value recomputed from its test statistic and degrees of freedom.

3 of 3

Statistics recomputed

Every reported test result, recomputed from its test statistic and degrees of freedom. A result shows as not adding up only once an independent check has confirmed it.

  • Doesn’t add upF(1, 19) = 3.46reported p = .07 · recomputed p = .078

    “F(1, 19) = 3.46, p = .07”

  • Doesn’t add upF(1, 19) = 3.96reported p = .05 · recomputed p = .061

    “F(1, 19) = 3.96, p = .05”

  • Doesn’t add upt(19) = 2.05reported p = .06 · recomputed p = .054

    “t(19) = 2.05, p = .06”

  • Consistentt(57) = 7.14reported p < .001 · recomputed p < .001

    “t(57) = 7.14, p < .001”

  • Consistentt(57) = 3.71reported p < .001 · recomputed p < .001

    “t(57) = 3.71, p < .001”

  • Consistentt(57) = 5.52reported p < .001 · recomputed p < .001

    “t(57) = 5.52, p < .001”

  • ConsistentF(1, 54) = 8.71reported p < .01 · recomputed p = .005

    “F(1, 54) = 8.71, p < .01”

  • ConsistentF(1, 54) = 3.39reported p = .07 · recomputed p = .071

    “F(1, 54) = 3.39, p = .07”

  • ConsistentF(1, 54) = 4.2reported p < .05 · recomputed p = .045

    “F(1, 54) = 4.20, p < .05”

  • Consistentt(28) = 4.05reported p < .001 · recomputed p < .001

    “t(28) = 4.05, p < .001”

  • Consistentt(26) < 1reported n.s. · recomputed p = .327

    “t(26) < 1, ns.”

  • Consistentt(28) = 2.28reported p < .05 · recomputed p = .030

    “t(28) = 2.28, p < .05”

  • ConsistentF(1, 57) = 3.3reported p = .07 · recomputed p = .075

    “F(1, 57) = 3.30, p = .07”

  • ConsistentF(1, 57) = 3.33reported p = .07 · recomputed p = .073

    “F(1, 57) = 3.33, p = .07”

  • Consistentr(14) = -0.29reported p > .25 · recomputed p = .276

    “r(14) = -.29,p > .25”

  • Consistentt(57) = 2.29reported p < .05 · recomputed p = .026

    “t(57) = 2.29, p < .05”

  • ConsistentF(1, 19) = 5.78reported p < .05 · recomputed p = .027

    “F(1, 19) = 5.78, p < .05”

  • ConsistentF(1, 19) < 1reported n.s. · recomputed p = .330

    “F(1, 19) < 1, ns”

  • ConsistentF(1, 19) = 5.17reported p < .05 · recomputed p = .035

    “F(1, 19) = 5.17, p < .05”

  • ConsistentF(1, 19) = 4.24reported p = .05 · recomputed p = .053

    “F(1,19) = 4.24, p = .05”

  • ConsistentF(1, 19) = 5.55reported p < .05 · recomputed p = .029

    “F(1, 19) = 5.55, p < .05”

  • Consistentt(19) < 1reported n.s. · recomputed p = .330

    “t(19) < 1, ns”

  • Consistentt(19) < 1reported n.s. · recomputed p = .330

    “t(19) < 1, ns.”

  • Consistentt(19) = 2.27reported p < .05 · recomputed p = .035

    “t(19) = 2.27, p < .05”

  • ConsistentF(1, 19) = 19.41reported p < .001 · recomputed p < .001

    “F(1, 19) = 19.41,p < .001”

  • Consistentt(56) < 1reported n.s. · recomputed p = .322

    “t(56) < 1, ns.”

26 of 26

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.

7 of 7

Citations

Cites

Show all 76 references

Research works printed but not linked: 5

  1. Arbeitsgruppe Deutsche Child Behavior Checklist. (1998). Elternfragebogen über das Verhalten von Kindern und Jugendlichen. Deutsche Bearbeitung der Child Behavior Checklist (CBCL/4-18). Köln: Arbeitsgruppe Kinder-, Jugend- und Familiendiagnostik (KJFD). [German consensus version of the Child Behavior Checklist (CBCL/4-18)].
  2. Cohen, A., Bayer, U. C., Jaudas, A., & Gollwitzer, P. M. (in press). Implementation intentions and executive control: Task switch performance and the Simon effect. Psychological Research.
  3. Reid, R., Trout, A. L., & Schartz, M. (2005). Self-regulation interventions for children with ADHD. Exceptional Children, 71, 361–377.
  4. Smith, A., & Taylor, E. (2006). Response inhibition and hyperactivity in clinical, non-clinical populations: A meta-analysis using the stop task. In R. D. Oades (Ed.), AD/HD and HKS: Current ideas and ways forward (pp. 203–225). Hauppauge: Nova Science Publishers.
  5. WHO (1991). Internationale Klassifikation psychischer Stoerungen: ICD 10, Kapitel V. Bern: Huber. [Tenth revision of the International classification of diseases, Chapter V (F): Mental and behavioral disorders].

Cited by

Sorted by citations

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Metadata

Authors
Gawrilow, C., & Gollwitzer, P. M.
Affiliations
  • University of Konstanz (DE)
  • New York University (US)
Corresponding author
Gawrilow, Caterina
Venue
Cognitive Therapy and Research
Published
2007-06-13
Volume
32
Issue
2
Pages
261-280
ISSN
  • 0147-5916 (ISSN-L)
  • 1573-2819
OpenAlex
W2158085314
Cited by
103
References
76
Citations by year
2026: 1 · 2025: 5 · 2024: 3 · 2023: 4 · 2022: 5 · 2021: 3 · 2020: 4 · 2019: 4 · 2018: 6 · 2017: 4 · 2016: 4 · 2015: 7 · 2014: 5 · 2013: 7 · 2012: 6
FWCI
4.82
Type
journal article
Language
en
Open access
Licence
Locations
  • Cognitive Therapy and Research (publishedVersion)
  • KOPS (University of Konstanz) (submittedVersion, cc-by-nc-nd)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
  • Social Sciences › Psychology › Developmental and Educational Psychology › Behavioral and Psychological Studies
Keywords
implementation intentions, response inhibition, attention deficit hyperactivity disorder, children, action control, self-regulation, go/no-go task, psychostimulants

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