Psychometric properties of the Thai version of the Internalized sexual stigma scale for research on lesbian, gay, bisexual, and transgender (LGBT) populations.

Internalized sexual stigma is an important contributor to LGBT mental health disparities. In Thailand, the absence of validated instruments represents a research barrier. The study's purpose was to translate and evaluate the psychometric properties of the Revised Internalized Homophobia (IHP-R) scale. Based on the cross-cultural principle, team translation was applied. The IHP-R was translated by the principal author and reviewed by bilingual Thai nurses, and clarifications were made. Multidisciplinary experts provided back translation and reconciled the finalized Thai version. The psychometric properties were established in 412 Thai LGBT individuals. Data was collected via online and paper-pencil surveys and analyzed using SPSS. Most participants were male, age ranged 18–53, with moderate levels of internalized homophobia (M = 2.3, SD = 1.04). The inter-item and item-total correlations were.38-.63 and.55-.68. The content validity index was high (I-CVI, S-CVI/UA/Ave = 1). The exploratory factor analysis confirmed one construct of internalized sexual self-stigma (factor loading =.702–.816). Scores on IHP-R were correlated with stress and experiences of discrimination (r =.14 and.12). Internal consistency reliability was also high (Cronbach's alpha coefficient =.83). The IHP-R Thai version has high psychometric properties and is appropriate for LGBT research in Thailand. [ABSTRACT FROM AUTHOR]