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Roberts, Robert E.; Roberts, Catherine R.; Chan, Wenyaw – Journal of Child Psychology and Psychiatry, 2009
Background: We have few data on incidence of psychiatric disorders among adolescents. This study examined first incidence of disorders among adolescents and baseline factors which increased or decreased risk of new onset cases a year later. Methods: Data were analyzed from Teen Health 2000 (TH2K), a probability sample of 4,175 youths 11-17 and…
Descriptors: Substance Abuse, Incidence, Attention Deficit Hyperactivity Disorder, Behavior Disorders
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Lederman, Regina P.; Chan, Wenyaw; Roberts-Gray, Cynthia – Behavioral Medicine, 2004
In this study, the authors compared differences in sexual risk attitudes and intentions for three groups of youth (experimental program, n = 90; attention control, n = 80; and nonparticipant control, n = 634) aged 12-14 years. Two student groups participated with their parents in programs focused on strengthening family interaction and prevention…
Descriptors: Control Groups, Student Attitudes, Experimental Programs, Pregnancy