Department of Psychology, University of Houston.
Psychol Addict Behav. 2024 Aug;38(5):616-627. doi: 10.1037/adb0000974. Epub 2023 Nov 27.
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.
Two samples were evaluated: a university-based sample ( = 617; 77.0% women; = 22.3; = 5.20) composed of racially diverse trauma-exposed students and a nationally representative sample ( = 510; 52.5% women; = 39.5; = 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.
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 [ = 617]: RMSEA = 0.047, 90% CI [.04, .05]; SRMR = 0.043; CFI = 0.95; TLI = 0.95; nationally representative sample [ = 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.
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).
创伤后应激障碍（PTSD）症状和酒精使用通常共同出现，并呈现出普遍的临床共病。自我药物治疗/应对模型已被广泛应用于理解 PTSD-酒精使用的关联。然而，用于评估特定于 PTSD 症状的酒精使用动机的自我报告测量工具相对较少。本研究的目的是开发和验证一种用于评估跨两个独立样本使用酒精来应对 PTSD 症状特定方面的测量工具。
评估了两个样本：一个基于大学的样本（n=617；77.0%女性；=22.3；=5.20），由种族多样化的创伤暴露学生组成；以及一个全国代表性样本（n=510；52.5%女性；=39.5；=10.9），包括有 PTSD 症状和过去一年危险饮酒的创伤暴露成年人。两个样本都完成了相同的在线问卷。开发和验证了一种创伤相关酒精使用应对（TRAC）测量工具，用于两个样本。
验证性因素分析支持了 TRAC 测量工具的潜在层次结构（总分；应对侵入、回避、认知和情绪的负面改变、唤醒/反应症状），并支持了 TRAC 测量工具的 18 项版本（基于大学的样本 [n=617]：RMSEA=0.047，90%CI[0.04，0.05]；SRMR=0.043；CFI=0.95；TLI=0.95；全国代表性样本 [n=510]：RMSEA=0.045，90%CI[0.04，0.05]；SRMR=0.021；CFI=0.98；TLI=0.97）。TRAC 测量工具具有极好的内部一致性、收敛性和区分效度，与心理健康的既定测量工具、已知群体的有效性以及相对于非 PTSD 应对动机性饮酒的增量有效性有关。
总的来说，TRAC 测量工具可用于评估酒精使用与应对 PTSD 症状的程度。（APA，2024）（PsycInfo 数据库记录（c）2024 APA，保留所有权利）。
