The question was whether or not attending a high-school with gay-straight alliances improved the outcomes of LGBT youth. 

Summary of GSAs amongst LGBT youth

Reference for GSAs amongst LGBT Youth

Gender and school were significant in judging teasing as wrong. In other words, girls and students from urban schools were more likely to judge teasing as wrong. 
Three beliefs, biological, individual rights, and religious convention-- predicted participants judging teasing as wrong.
Three out of 10 justifications were significant factors in judging teasing the gay male target as wrong.:

1. Need To belong
2. Human Equality
3. Unfairness

Personal choice belief were associated with the judgement that teasing is less wrong. 


Pepperdine University

The predictors differed based on the targets.
For lesbian targets, only gender and evaluative judgement were significant
For gay targets, gender, school, three beliefs and five justifications remained significant while evaluative was not. 
The strongest predictors of teasing were found in predicting the teasing of gays, religious convention, and fairness. 


Teasing

Horn, S. S., Szalacha, L. A., & Drill, K. (2008). Schooling, sexuality, and rights: An investigation of heterosexual students' social cognition regarding sexual orientation and the rights of gay and lesbian peers in school. Journal of Social Issues, 64(4), 791–813. https://doi.org/10.1111/j.1540-4560.2008.00589.x

Schooling, Sexuality, and Rights: An Investigation of Heterosexual Students’ Social Cognition Regarding Sexual Orientation and the Rights of Gay and Lesbian Peers in School

There was a propensity for girls to be less likely to tease, but no other differences were identified. 
There were no significant predictors of teasing by belief category, but all of the justifications, save the need to belong, were significant.
Those judging tasing as less wrong justified their judgements by stating that homosexuality was against God’s law, affirms norms, negates norms, being hit on, personal choice, religious human equality, and unnatural.


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