Department of Psychology, University of Rhode Island.
College of Nursing, Washington State University.
Psychol Addict Behav. 2023 Mar;37(2):199-208. doi: 10.1037/adb0000833. Epub 2022 May 5.
People experiencing homelessness are disproportionately impacted by alcohol-related harm. Racially minoritized groups are disproportionately represented in the homeless population and are likewise disproportionately impacted by alcohol-related harm. Most alcohol outcome measures have not been adequately psychometrically studied in this marginalized population and across racial groups. This study documents psychometric properties, including measurement invariance, reliability, and convergent validity, of a measure of alcohol-related harm, the Short Inventory of Problems (SIP-2R), across Black, North American Indigenous (NAI), and White adults experiencing homelessness and alcohol use disorder (AUD).
Adults experiencing homelessness and AUD who had participated in one of two randomized controlled trials of harm-reduction treatment ( = 493; NAI = 205, Black = 125, and White = 163) were included in this psychometric study of the 15-item SIP-2R.
Multigroup confirmatory factor analysis (MGCFA) indicated that a model comprising one general alcohol-related harm factor overarching five factors, showed close fit and partial scalar invariance, ²(329, = 493) = 624.902, < .001, comparative fit index (CFI) = .966, root-mean-square error of approximation (RMSEA) = .074, 90% CI [.066, .083], standardized root-mean-square residual (SRMR) = .063, confirming acceptable measurement equivalence across racial groups. The SIP-2R showed internal consistency (α = .94, ω = .95) and convergent validity, that is, positive correlation between the total SIP-2R score and the number of drinks consumed the heaviest drinking day, ρ(490) = .30, < .001.
This study provided support for the internal consistency, convergent validity, and cross-group measurement equivalence of the SIP-2R for NAI, Black, and White adults experiencing homelessness with AUD. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
无家可归者受到与酒精相关的伤害的影响不成比例。少数族裔群体在无家可归者中所占比例不成比例，同样受到与酒精相关的伤害不成比例的影响。大多数酒精结果测量在这个边缘化群体和不同种族群体中都没有得到充分的心理测量学研究。本研究记录了酒精相关伤害测量的心理测量学特性，包括测量不变性、可靠性和收敛有效性，该测量是一个简短的问题清单（SIP-2R），用于经历 homelessness 和酗酒障碍（AUD）的黑人、北美原住民（NAI）和白人成年人。
参加过两项减少伤害治疗随机对照试验（ = 493；NAI = 205，黑人 = 125，白人 = 163）的无家可归和酗酒障碍的成年人包括在这个简短的问题清单（SIP-2R）的心理测量研究中。
多组验证性因素分析（MGCFA）表明，一个由一个总体酒精相关伤害因素和五个因素组成的模型，表现出了接近的拟合和部分标度不变性，²（329， = 493）= 624.902， <.001，比较拟合指数（CFI）=.966，根均方误差逼近（RMSEA）=.074，90%置信区间[.066，.083]，标准化根均方残差（SRMR）=.063，确认了种族群体之间的可接受的测量等效性。SIP-2R 显示出内部一致性（α=.94，ω=.95）和收敛有效性，即 SIP-2R 总分与最重饮酒日的饮酒量之间存在正相关，ρ（490）=.30， <.001。
这项研究为 SIP-2R 在经历酗酒障碍的无家可归的北美原住民、黑人、白人成年人中的内部一致性、收敛有效性和跨群体测量等效性提供了支持。
