Supplementary Material

The main purpose of the study was to investigate whether gender identity stigma, teachers’ acceptance, and parental support were predictors of mental health among LGBT senior high school students utilizing the predictive research design. A non-probability sampling, specifically the combination of convenience and snowball sampling was employed. A total of four hundred senior high school students participated in the study. Results revealed that the gender identity stigma, teachers’ acceptance, and parental support significantly predict the mental health of the respondents (F (3, 396) = 37.695, p<.001. Specifically, Gender Identity Stigma (β = -.224, t = -4.542, p < .001) negatively predicted Overall Mental Health while both Teachers’ Acceptance (β = .201, t = 4.493, p < .001) and Parental Support (β = .253, t = 5.102, p < .001) positively predicted the Overall Mental Health. The result of the study helped in developing intervention programs that will enhance the existing policy on gender and development in the education sector.