Behavior problems of children in regular classes and those diagnosed as requiring speech therapy

2,991 white children in regular classes and 106 white children requiring speech therapy were compared on Quay's Behavior Problem Checklist. The former had fewer problems checked in areas such as personality disorders and inadequacy-immaturity than did the latter, as expected, although the amount of variance accounted for was small. The groups did not differ on conduct problems and socialized deliquency. A question was raised about variations in psychotic signs.