The goal of the current paper is to provide a critical analysis of barriers to social inclusion in schools and propose inclusive educational practices that help connect and unite diverse students.Diversity is defined broadly as overall heterogeneity. We review theoretical frameworks that help explain group dynamics and contextual conditions that contribute to exclusion (i.e., peer victimization, rejection, friendlessness) of students based on ethnicity, sexual orientation, body weight, etc. We argue that to be able to facilitate peer acceptance and cross-group friendships,

Youth who feel they do not fit with gender norms frequently experience peer victimization and socioemotional distress. To gauge differences between schools, the current study examined the longitudinal effects of school-level gender norm salience-a within-school association between gender typicality and peer victimization-on socioemotional distress across 26 ethnically diverse middle schools (n = 2607; n = 2805). Boys (but not girls) reporting lower gender typicality experienced more loneliness and social anxiety in schools with more salient gender norms, even when accounting for both individual and school level victimization. Greater gender norm salience also predicted increased depressed mood among boys regardless of gender typicality. These findings suggest particular sensitivity among boys to environments in which low gender typicality is sanctioned.

The current longitudinal study was designed to examine one of the possible underlying mechanisms that can help account for why low gender typicality (i.e., not feeling like a typical boy or girl) is related to subsequent psychosocial adjustment problems: peer victimization. Relying on a large (N ¼ 5,991, 52% female), ethnically diverse U.S. sample, the results suggested that peer victimization at 7th grade partially accounts for associations between 7th grade gender typicality and 8th grade social anxiety, somatic complaints, and externalizing behavior, when controlling for earlier (e.g., 6th grade) levels of adjustment. Associations were similar across ethnic groups. Peer victimization mediated associations for boys and girls across all outcomes; however, girls showed stronger associations with somatic complaints and boys showed stronger associations with externalizing behavior. These results suggest that attempts to improve adjustment for youth feeling low gender typicality should focus in part on reducing peer victimization.

To gain insights into whether schools striving to improve intergroup dynamics should curb disliking or facilitate liking across students of different ethnic groups, the current study examines the associations between interpersonal affect and intergroup relations in multiethnic schools. Given (i.e., outgoing) peer nominations of liked and disliked grade-mates were coded by ethnicity in 26 public middle schools, including all Asian, Black, Latinx, and White students ( N = 4,350). Controlling for earlier intergroup attitudes and the availability of ethnic ingroup and relevant outgroup grade-mates, multilevel analyses show that liking (but not disliking) of cross-ethnic grade-mates was associated with more positive attitudes toward that particular ethnic group. Implications of these findings for intergroup relations among adolescents in multiethnic schools are discussed.