ICP and GCP intervention conditions (Wj, ICP=1 and GCP=0) were randomly assigned to schools, and the school received the same intervention condition in three successive years (cohorts). At level-3, we controlled for intervention condition on intercept and examined effects of children’s characteristics on intervention (indicating interactions of intervention and child’s characteristic) on child’s behavior change rate. The intercept was random effect at Level-3, and all interaction effects were fixed effects.
