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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 unexpected outbreak and rapid spread of COVID-19 necessitated radical and stringent control measures, consequently changing how people live globally. To vulnerable populations like refugees, who were already living a disrupted life, the outbreak of COVID-19 and accompanying control measures complicated their living conditions and drastically affected their mental health and, consequently, their quality of life. The current study aimed to test whether psychological inflexibility was a factor in lowering the quality of life of refugees in Uganda during the COVID-19 pandemic. The study further examines whether the effects of psychological inflexibility on quality of life were serially mediated by avoidance coping, perceived threat, adherence to COVID-19 control measures, and general mental health states. The study was conducted among refugees living in Kampala city suburbs and Bidibidi refugee settlement in Uganda. Data was collected using a survey questionnaire during the partial reopening of the economy in mid-2020, after the first lockdown. The analysis assesses a serial mediation model of the effects of psychological inflexibility on the quality of life of refugees through avoidance coping, perceived threat, adherence to COVID-19 control measures, and mental health using PROCESS Macro. The study involved 353 participants. Our analyses revealed that psychological inflexibility was negatively associated with the perceived threat, adherence, and quality of life. Psychological inflexibility was positively associated with avoidance coping and poor mental health. The data supported all hypothesized mediation paths. These findings support literature suggesting that psychological inflexibility is a maladaptive attribute that thwarts positive coping and behavior adjustment in times of crisis. Consequently, psychological inflexibility can worsen mental health problems and quality of life, especially in populations such as refugees in low-income countries who live in precarious conditions. Incorporating interventions that reduce psychological inflexibility in crisis management efforts can help refugees maintain good psychological functioning and quality of life.

Dataset Information

Measuring the role of psychological inflexibility in Trichotillomania.

Publications

Measuring the role of psychological inflexibility in Trichotillomania.

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