title: Hyperactivity. Overview and new directions.
abstract: An enormous number of articles have been published in recent years on this most researched and best known of the childhood behavior disorders. This article discusses the syndrome of hyperactivity in terms of postdictive, concurrent, and predictive validity. Future research is considered and follow-up studies are reviewed.
mesh_terms: D000293:Adolescent; D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D002648:Child; D002657:Child Development; D003430:Cross-Sectional Studies; D005500:Follow-Up Studies; D006801:Humans; D011446:Prospective Studies; D011581:Psychological Tests; D012106:Research; D014481:United States