Participants were 4 groups of early adolescents from middle-class backgrounds (European and Chinese Americans in southern California and Chinese in Taipei, Taiwan, and Beijing, China). The 591 adolescents (M age = 13.8 years) completed questionnaires about their involvement in misconduct and about family and peer characteristics. Mothers of a subsample of adolescents (n = 405) also completed a questionnaire about their relationships with their adolescents. The 4 groups of adolescents reported significantly different mean levels of family and peer correlates but showed strikingly similar levels and patterns of self-reported misconduct. Structural equation models revealed that 2 latent variables (family relationships and peer sanctions) accounted for more variance in misconduct among European and Chinese American adolescents (51%-62%) than among the 2 Chinese groups (15%-24%), mainly because of a greater contribution of peer factors in the former groups.