Psychometric properties of common self-report measures for obsessive-compulsive disorder in sexual and gender minorities

Abstract

Prevalence of obsessive-compulsive disorder (OCD) appears to be higher in sexual and gender minority (SGM) individuals compared to cisgender, heterosexual individuals. Although existing self-report measures for OCD (i.e., Yale Brown Obsessive Compulsive Scale Self-Report-II-Self Report [Y-BOCS-II-SR], Dimensional Obsessive Compulsive Scale [DOCS], and Obsessive Beliefs Questionnaire-Short Form [OBQ-SF]) have demonstrated strong psychometric properties in prior samples, these studies have not reported the proportion of SGM individuals in their samples. Thus, it remains unclear how these measures perform when used with SGM individuals. Accordingly, the psychometric properties of the Y-BOCS-II-SR, DOCS, and OBQ-SF were examined in a sample of 318 sexual minority (98.4%) and gender minority (33.8%) adults with self-reported OCD (Mage = 27.5 years; 87.4% female sex at birth; 93.4% white). Replicating prior research, these measures demonstrated consistent response patterns and strong factor structures and loadings, internal consistency, and convergent validity. Overall, these measures appear to be psychometrically sound when used with SGM individuals, and the few psychometric weaknesses found in the present study parallel those found in other samples, suggesting that they are not specific to use with SGM individuals. Findings support that the Y-BOCS-II- SR, DOCS, and OBQ- SF can be accurately used and interpreted in samples that are comprised of SGM individuals.