The study explores the possibilities of gender, ethnicity, and religion differences on attributions (locus of control, stability, personal and external control), motivational goals (learning, performance approach, performance avoidance, and work avoidance), self-efficacy, intelligence beliefs, religiosity, racial/ethnic identity, and academic performance (mid-term test, final test, and GPA scores) within the Indonesian university settings. Racial/ethnic identity had three dimensions: private regard, ethnic importance, and social embeddedness; whilst religiosity had two dimensions: religious behaviour and intrinsic religiosity. 1,006 students (73.8% Native Indonesians and 24.8% Chinese Indonesians) from three public and two private universities participated. Males were significantly higher on work avoidance goals. Ethnic and religion differences were found on religiosity: Native Indonesians and Hindus reported higher intrinsic religiosity; Christians reported greater behavioural religiousity. Gender and religion interactions revealed lower locus of control among male Chinese, and lower final test score among male Muslim. Explanations for these differences are advanced and directions for further research outlined.