Social inequality in education is a frequently investigated subject in educational sociology. Educational inequalities that received much attention in the last decennia are the achievement gaps caused by socioeconomic inequality (Coleman et al., 1966), racial or ethnic inequality (Johnson, Crosnoe & Elder, 2001) or gender (Epstein, Elwood, Hey & Maw, 1998). Only recently attention is paid to the educational experiences and careers of LGB (lesbian, gay and bisexual) students. Educational inequality is often explained in terms of adjustment difficulties, caused by differences between personal characteristics and the expectations that are present in schools. When students’ characteristics do not align with the formal or informal structure of the school, their ability to negotiate this structure is compromised. In an effort to maintain their identity and avoid a loss of self worth, students who are stigmatized may disengage from their teachers, school, and the learning process itself. In the case of sexual minority students, these adjustment problems are displayed by the difficulty of non-heterosexual students to fit in a heteronormative environment. Previous research showed that LGB students often experience severe problems in school because of their sexual orientation. Many are confronted with bullying and discrimination, and they often do not feel accepted in a heteronormative school environment (Ellis & High, 2004; Buston & Hart, 2001). These experiences can have an impact on their well-being and mental health, but also on their school careers and future success in life (Mishna, Newman, Daley, & Solomon, 2008; Poteat & Espelage, 2007). Most previous research on the school careers of sexual minorities, however, is carried out in countries with little opportunities for LGBs, and high rates of homonegativity among the general population. We want to investigate if the impact of sexual orientation on school careers and experiences is different for LGB students in regions that are known to be ...