title: An observational assessment of change in two groups of behaviourally disturbed boys.
mesh_terms: D000374:Aggression / Q000523:psychology; D002648:Child; D002653:Child Behavior Disorders / Q000523:psychology / Q000628:therapy*; D002675:Child, Preschool; D006127:Group Structure; D006801:Humans; D008297:Male; D011615:Psychotherapy, Group / Q000379:methods*; D012917:Social Adjustment; D012919:Social Behavior