This report discusses the outcomes of a study that investigated whether a self-contained (SC) or pull-out (PO) intervention model was the most effective and most supportive of children's behavioral gains over the course of the entire 1996/1997 year. Data were collected by reviewing the clinical records of children (ages 6-14) who participated in one of central Mississippi's Comprehensive Mental Health Center School based day-treatment programs. An available sample of all the children who had been in either the PO (n=56) or SC (n=32) programs were included in the sample. An outpatient group (OP) of children (n=139) who attended regular education classes at school and received outpatient mental health was also included. Results indicated: (1) the significant differences between groups were not found between the SC and PO models, but between the SC and PO models and the OP groups; (2) the SC model was not significantly more effective than the PO model; (3) children in the SC group progressed behaviorally more than did the children in the PO or OP groups; and (4) children in the SC group had much longer lengths of stay in psychiatric inpatient settings of residential facilities than did the children in the PO or OP group. (CR)