The relationship between social competence and academic achievement in middle childhood during 6-month follow-up study was analyzed by cross-lagged regression. The findings indicated that after academic achievement at timel under control, social preference, social/leadership behaviors at timel were positive predictors of academic achievement at time2, and aggressive behavior at timel was a negative predictor of achievement in time2; after self-perceived social competence at timel under control, academic achievement at timel was a posi...