Dataset Information

Measuring the role of psychological inflexibility in Trichotillomania.

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.

SUBMITTER: Houghton DC

PROVIDER: S-EPMC4254146 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

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Measuring the role of psychological inflexibility in Trichotillomania.

Houghton David C DC Compton Scott N SN Twohig Michael P MP Saunders Stephen M SM Franklin Martin E ME Neal-Barnett Angela M AM Ely Laura L Capriotti Matthew R MR Woods Douglas W DW

Psychiatry research 20140813 1-2

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 ...[more]

PMID: 25155941

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Project description:Objectives: In clinical trials of pediatric trichotillomania (TTM), three instruments are typically employed to rate TTM severity: (1) the Massachusetts General Hospital Hair Pulling Scale (MGH-HPS), (2) the National Institute of Mental Health Trichotillomania Severity Scale (NIMH-TSS), and (3) the Trichotillomania Scale for Children (TSC). These instruments lack standardized definitions of treatment response, which lead researchers to determine their own definitions of response post hoc and potentially inflate results. We performed a meta-analysis to provide empirically determined accuracy measures for percentage reduction cut points in these three instruments. Methods: MEDLINE was searched for TTM clinical trials. A total of 67 studies were initially identified, but only 5 were clinical trials focused on TTM in pediatric populations and therefore were included in this meta-analysis (n = 180). A Clinical Global Impressions Improvement score ≤2 was used to define clinical response. Receiver operating characteristic principles were employed to determine accuracy measures for percentage reduction cut points on each one of the instruments. Meta-DiSc software was employed to provide pooled accuracy measures for each cut point for each instrument. The Youden Index and the distance to corner methods were used to determine the optimal cut point. Results: The optimal cut points to determine treatment response were a 45% reduction on the MGH-HPS (Youden Index 0.40, distance to corner 0.20), a 35% reduction on the NIMH-TSS (Youden Index 0.42, distance to corner 0.17), a 25% reduction on the TSC child version (TSC-C; Youden Index 0.40, distance to corner 0.18), and a 45% (distance to corner 0.30) or 50% reduction (Youden Index 0.33) on the TSC parent version (TSC-P). The TSC-C had less discriminative ability at determining response in younger children in comparison to older children; no age-related differences were observed on the TSC-P. Conclusions: This study provides empirically determined cut points of treatment response on three instruments that rate TTM severity. These data-driven cut points will benefit future research on pediatric TTM.

Project description:The Moderating Roles of Psychological Flexibility and Inflexibility on the Mental Health Impacts of COVID-19 Pandemic and Lockdown in Italy. Preliminary data suggest the COVID-19 pandemic has adverse effects on mental health in approximately a quarter of the general population. Few prior studies have identified contextual risk factors and no published study has explored factors that might moderate their adverse effects on mental health. Psychological flexibility is the cornerstone of psychological health and resiliency. This study investigated the roles of psychological flexibility and inflexibility in moderating the effects of COVID-19 risk factors on three mental health outcomes: COVID-19 peritraumatic distress, anxiety, depression. We hypothesized that psychological flexibility would mitigate and psychological inflexibility would exacerbate the adverse effects of COVID-19 risk factors on mental health. During the Italian national lockdown (M = 39.29 days, SD = 11.26), 1035 adults (79% female, M = 37.5 years, SD = 12.3) completed an online survey. Twelve COVID-19 risk factors were identified (e.g. lockdown duration, family infected by COVID-19, increase in domestic violence and in unhealthy lifestyle behaviours) and constituted a COVID-19 Lockdown Index. As predicted, results showed that after controlling for sociodemographic variables, global psychological flexibility and four of its sub-processes (self-as context, defusion, values, committed action), mitigated the detrimental impacts of COVID-19 risk factors on mental health. In contrast and as expected, global psychological inflexibility and four of its sub-processes (lack of contact with present moment, fusion, self-as-content, lack of contact with personal values) exacerbated the detrimental impacts of COVID-19 risk factors on mental health. Findings converge with those from the broader psychological flexibility literature providing robust support for the use of ACT-based interventions to promote psychological flexibility and mental health during the COVID-19 pandemic.

Dataset Information

Measuring the role of psychological inflexibility in Trichotillomania.

Publications

Measuring the role of psychological inflexibility in Trichotillomania.

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