Center on Alcohol, Substance Use, And Addictions (CASAA), University of New Mexico.
Exp Clin Psychopharmacol. 2021 Apr;29(2):157-165. doi: 10.1037/pha0000455.
Cannabis use disorder (CUD) is commonly assessed using self-report items based on its symptoms as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM) that are scored on a dichotomous scale (yes/no) to indicate symptom presence; however, scoring items on a dichotomy may result in relatively limited sensitivity for research. Thus, we developed a 13-item measure of CUD, the Self-Reported Symptoms of CUD (SRSCUD), based on the 11 symptoms described in the DSM-5 that is scored on a 4-point response scale indicating degree of severity. In the present study, we conduct an initial evaluation of the psychometric properties of the SRSCUD. Past-month cannabis users (N = 2,077) were recruited from nine universities in nine states throughout the U.S. Each item of the SRSCUD loaded saliently onto a single factor of CUD symptoms in both exploratory and confirmatory factor analyses. The SRSCUD was strongly correlated with measures of cannabis use, dependence severity, and cannabis-related problems. In addition, the SRSCUD was moderately positively correlated with a well-known risk factor for CUD (coping motives) and moderately negatively correlated with a well-known protective factor for CUD (protective behavioral strategies). These correlations mostly remained statistically significant while controlling for CUD symptom count and diagnosis using dichotomized SRSCUD items. Receiver operator characteristic curve analyses revealed that the SRSCUD had excellent sensitivity/specificity for predicting probable CUD. Although more research evaluating performance of the SRSCUD compared to a clinical diagnosis is needed, we found preliminary evidence for construct validity of this measure. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
大麻使用障碍（CUD）通常使用基于其症状的自我报告项目进行评估，这些症状是根据《精神障碍诊断与统计手册》（DSM）定义的，并以二分制（是/否）评分来表示症状的存在；然而，以二分制评分可能会导致研究的敏感性相对有限。因此，我们基于 DSM-5 中描述的 11 种症状，开发了一种 13 项大麻使用障碍自我报告症状量表（SRSCUD），该量表采用 4 点反应量表评分，表明严重程度。在本研究中，我们对 SRSCUD 的心理测量特性进行了初步评估。从美国九个州的九所大学招募了过去一个月使用大麻的人（N=2077）。在探索性和验证性因子分析中，SRSCUD 的每个项目都显著加载到大麻使用障碍症状的单一因子上。SRSCUD 与大麻使用、依赖严重程度和与大麻相关问题的测量结果高度相关。此外，SRSCUD 与大麻使用障碍的一个已知危险因素（应对动机）中度正相关，与大麻使用障碍的一个已知保护因素（保护性行为策略）中度负相关。在控制使用二分制 SRSCUD 项目的 CUD 症状计数和诊断后，这些相关性大多仍然具有统计学意义。受试者工作特征曲线分析表明，SRSCUD 对预测可能的 CUD 具有极好的敏感性/特异性。尽管需要更多的研究来评估 SRSCUD 与临床诊断相比的表现，但我们发现了该测量方法具有结构效度的初步证据。（PsycInfo 数据库记录（c）2021 APA，保留所有权利）。
