Cited by 84Obsessive-Compulsive Spectrum DisordersMindfulness and Compassion InterventionsAnxiety, Depression, Psychometrics, Treatment, Cognitive Processes

Measuring the role of psychological inflexibility in trichotillomania

Open access
Houghton, David C., Compton, Scott N., Twohig, Michael P., Saunders, Stephen M., Franklin, Martin E., Neal-Barnett, Angela M., Ely, Laura, Capriotti, Matthew R. +1 more·2014·Psychiatry Research

Abstract

Psychological Inflexibility (PI) is a construct that has gained recent attention as a critical theoretical component of Acceptance and Commitment Therapy (ACT). PI is typically measured by the Acceptance and Action Questionnaire-II (AAQ-II). However, the AAQ-II has shown questionable reliability in clinical populations with specific diagnoses, leading to the creation of content-specific versions of the AAQ-II that show stronger psychometric properties in their target populations. A growing body of the literature suggests that PI processes may contribute to hair pulling, and the current study sought to examine the psychometric properties and utility of a Trichotillomania-specific version of the AAQ-II, the AAQ-TTM. A referred sample of 90 individuals completed a battery of assessments as part of a randomized clinical trial of Acceptance-Enhanced Behavior Therapy for Trichotillomania. Results showed that the AAQ-TTM has two intercorrelated factors, adequate reliability, concurrent validity, and incremental validity over the AAQ-II. Furthermore, mediational analysis between emotional variables and hair pulling outcomes provides support for using the AAQ-TTM to measure the therapeutic process. Implications for the use of this measure will be discussed, including the need to further investigate the role of PI processes in Trichotillomania.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.psychres.2014.08.003

Cites

61 of 61 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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 AAQ-TTM is negatively correlated with trichotillomania severity, with correlations of −.37 with the NIMH-TSS and −.49 with the MGH-HPS.

    “The AAQ-TTM has been found to be negative correlated with trichotillomania severity (r = −.37 with NIMH-TSS and −.49 with MGH-HPS), anxiety (r = −.36 with BAI), and depression (r = −.61 with BDI; Houghton et al., 2014).”

    From The role of psychological flexibility in acceptance-enhanced behavior therapy for trichotillomania: Moderation and mediation findings (2023) · cites this paper as Houghton et al., 2014

    The Results (§3.3 Validity; page unavailable) report significant correlations between AAQ-TTM scores and both the NIMH-TSS and MGH-HPS. The Methods (§2.2.1; page unavailable) say higher AAQ-TTM scores indicate greater psychological flexibility, consistent with an inverse relationship to severity. The passages in our copy do not give the claimed coefficients of −.37 and −.49, so those exact values are not verified. (LLM, conf=0.79)

    Experimental — accuracy not yet measured
  • The AAQ-TTM is negatively correlated with depression, with a correlation of −.61 with the BDI.

    “The AAQ-TTM has been found to be negative correlated with trichotillomania severity (r = −.37 with NIMH-TSS and −.49 with MGH-HPS), anxiety (r = −.36 with BAI), and depression (r = −.61 with BDI; Houghton et al., 2014).”

    From The role of psychological flexibility in acceptance-enhanced behavior therapy for trichotillomania: Moderation and mediation findings (2023) · cites this paper as Houghton et al., 2014

    Results §3.3 (page unavailable) reports that the AAQ-TTM was significantly correlated with the BDI, supporting the claimed association with depression. The passages in our copy do not give the correlation’s direction or the specific value of −.61, so those details are not verified. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • The AAQ-TTM is negatively correlated with anxiety, with a correlation of −.36 with the BAI.

    “The AAQ-TTM has been found to be negative correlated with trichotillomania severity (r = −.37 with NIMH-TSS and −.49 with MGH-HPS), anxiety (r = −.36 with BAI), and depression (r = −.61 with BDI; Houghton et al., 2014).”

    From The role of psychological flexibility in acceptance-enhanced behavior therapy for trichotillomania: Moderation and mediation findings (2023) · cites this paper as Houghton et al., 2014

    The Results (§3.3 Validity; page unavailable) state that the AAQ-TTM was significantly correlated with BAI anxiety scores. The passages in our copy do not give the correlation’s direction or the claimed coefficient of −.36, so those details cannot be verified. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • The Acceptance and Action Questionnaire - Trichotillomania has shown good internal consistency, concurrent validity, and incremental validity over the AAQ-II.

    “It has shown good internal consistency, concurrent validity, as well as incremental validity over the AAQ-II (Houghton et al., 2014).”
  • Houghton et al. (2014) reported that trichotillomania-specific psychological inflexibility indirectly linked depression to hair-pulling severity.

    “In trichotillomania, Houghton et al. (2014) found an indirect effect of trichotillomania-specific psychological inflexibility on the relationship between depression and hair-pulling severity, consistent with hypotheses about the emotional regulation function of pulling behavior.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Nunnally JC 1978 Psychometric theory 2 McGraw-Hill New York
  2. Woods DW Twohig MP 2008 Trichotillomania: An ACT-enhanced Behavior Therapy Approach, Therapist’s Guide Oxford University Press New York

Cited by

Sorted by citations

Authors
Houghton, D. C., Compton, S. N., Twohig, M. P., Saunders, S. M., Franklin, M. E., Neal-Barnett, A. M., Ely, L., Capriotti, M. R., & Woods, D. W.
Affiliations
  • Texas A&M University (US)
  • Duke University (US)
  • Utah State University (US)
  • Marquette University (US)
  • University of Pennsylvania (US)
  • Kent State University (US)
  • University of Wisconsin–Milwaukee (US)
Corresponding author
Woods, Douglas W.
Venue
Psychiatry Research
Publisher
Elsevier BV
Published
2014-12
Volume
220
Issue
1-2
Pages
356-361
ISSN
0165-1781 (ISSN-L)
OpenAlex
W2083072238
Cited by
84
References
59
Citations by year
2025: 6 · 2024: 8 · 2023: 26 · 2022: 8 · 2021: 4 · 2020: 4 · 2019: 5 · 2018: 10 · 2017: 7 · 2016: 4 · 2015: 2
FWCI
5.11
Type
journal article
Language
en
Open access
Locations
  • Psychiatry Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Commons - USU (Utah State University) (submittedVersion)
Funders
National Institutes of Health (R01MH080966)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
Keywords
psychological inflexibility, trichotillomania, Acceptance and Action Questionnaire-II, psychometric properties, incremental validity, concurrent validity, hair pulling, therapeutic process, emotional factors
MeSH terms
Adult, Behavior Therapy, Cross-Sectional Studies, Female, Humans, Male, Psychometrics, Surveys and Questionnaires, Trichotillomania, Reproducibility of Results, Young Adult

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.

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 ›

Are you an author, or do you see a problem with this page? Request a review