Investigating the validity and equivalence of the measurement of minority stress in predicting substance use among SGM individuals

项目概要/摘要 性和性别少数（SGM）个体有较高的药物使用率，心理健康障碍， 一些身体健康状况。一个主要的模型来理解这些健康的更大比率， SGM人群中的状况是少数压力模型，这表明， 和内在的耻辱，偏见的期望，和身份隐藏额外的压力负担， SGM的人。不幸的是，这项研究的可复制性和严谨性受到缺乏有效性证据的威胁 用于测量关键少数群体压力结构。这对于SGM子组（例如， 无性恋、双性恋、泛性恋、酷儿、非二元、跨女性和跨男性个体）和跨性别 交叉身份（例如，年龄，种族，社会经济地位和地理区域），少数人通常 现有的用于测量少数民族压力的测量方法被认为是在没有充分验证的情况下进行推广的， 测量不变性检验 本研究将通过建立有效性证据来解决SGM健康研究中的这一主要方法学差距 3种常用的少数民族压力测量方法的测量等效性：内化的同性恋恐惧症 量表-修订版（IHS-R）、内布拉斯加州外向量表和文化少数族裔压力分量表 自杀风险评估。我们将通过调查：收敛和判别效度， 跨SGM亚群和交叉身份以及随时间推移的测量不变性，以及预测性 这些措施在解释这些亚群和交叉身份的物质使用方面的有效性。 这项研究将为严格和可复制的SGM健康研究奠定基础。

PROJECT SUMMARY/ABSTRACT Sexual and gender minority (SGM) individuals have higher rates of substance use, mental health disorders, and some physical health conditions. A predominant model for understanding the greater rates of these health conditions among SGM people is the minority stress model, which suggests that increased exposure to enacted and internalized stigma, expectations of prejudice, and identity concealment place additional stress burden on SGM people. Unfortunately, the replicability and rigor of this research is threatened by a lack of validity evidence for the measurement of key minority stress constructs. This is especially problematic for SGM subgroups (e.g., asexual, bisexual, pansexual, queer, non-binary, transfeminine, and transmasculine individuals) and across intersecting identities (e.g., age, race, socioeconomic status, and geographic region) for which the few commonly used measures that exist to measure minority stress are assumed to generalize without adequate validation and measurement invariance testing. This study will address this major methodological gap in SGM health research by establishing validity evidence and measurement equivalence for 3 commonly used measures of minority stress: The Internalized Homophobia Scale- Revised (IHS-R), The Nebraska Outness Scale, and the Minority Stress subscales of the Cultural Assessment of the Risk for Suicide. We will do this by investigating the: convergent and discriminant validity, measurement invariance across SGM subpopulations and intersecting identities and over time, and predictive validity of these measures in explaining substance use across these subpopulations and intersecting identities. This study will lay the groundwork for rigorous and replicable SGM health research.