Teacher ratings on the Behavior Problem Checklist of adolescents who were clinically diagnosed as schizophrenic (psychotic) and those who had an adjustment reaction of adolescence (nonpsychotic) were compared. The schizophrenics tended to be rated as more deviant on both the flag items and Inadequacy-Immaturity dimensions of the checklist. (Author)

Social inadequacy and lack of social cooperation is one of the defining characteristics of mental deficiency, yet there have been comparatively few investigations into how such children respond to each other. Of even greater significance is the finding that among the reported studies investigating social cooperation between mentally deficient…