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  • Title: The development and initial validation of the Trauma-Related Alcohol Use Coping Measure (TRAC).
    Author: Lebeaut A, Zegel M, Steinberg L, Zvolensky MJ, Vujanovic AA.
    Journal: Psychol Addict Behav; 2024 Aug; 38(5):616-627. PubMed ID: 38010782.
    Abstract:
    OBJECTIVE: Posttraumatic stress disorder (PTSD) symptoms and alcohol use commonly co-occur and present a prevalent clinical comorbidity. The self-medication/coping model has been applied most consistently to understand the PTSD-alcohol use association. However, there is a relative paucity of self-report measures designed to assess motivations for alcohol use, specifically for coping with PTSD symptoms. The goals of the present study were to develop and validate a measure that assesses the use of alcohol to cope with specific facets of PTSD symptomatology across two independent samples. METHOD: Two samples were evaluated: a university-based sample (N = 617; 77.0% women; Mage = 22.3; SD = 5.20) composed of racially diverse trauma-exposed students and a nationally representative sample (N = 510; 52.5% women; Mage = 39.5; SD = 10.9) of trauma-exposed adults who endorsed PTSD symptoms and past-year hazardous drinking. Both samples completed identical online questionnaire batteries. A Trauma-Related Alcohol Use Coping (TRAC) measure was developed and validated across both samples. RESULTS: Confirmatory factor analysis was used to support the latent, hierarchical structure of the TRAC measure (total score; coping with intrusion, avoidance, negative alterations in cognitions and mood, and arousal/reactivity symptoms) and supported an 18-item version of the TRAC measure (university-based sample [N = 617]: RMSEA = 0.047, 90% CI [.04, .05]; SRMR = 0.043; CFI = 0.95; TLI = 0.95; nationally representative sample [N = 510]: RMSEA = 0.045, 90% CI [.04, .05]; SRMR = 0.021; CFI = 0.98; TLI = 0.97). The TRAC measure demonstrated excellent internal consistency, convergent, and discriminant validity with well-established measures of mental health, known-groups validity, and incremental validity relative to non-PTSD coping-motivated drinking. CONCLUSIONS: Overall, the TRAC measure can be used to assess the extent to which alcohol use is related to coping with PTSD symptoms. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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