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Shillington, Audrey M.; Clapp, John D.; Reed, Mark B.; Woodruff, Susan I. – Journal of Child & Adolescent Substance Abuse, 2011
This study analyzed six waves of panel data from the National Longitudinal Survey of Youth (NLSY). These analyses were conducted to test the stability of self-reported lifetime use and age of onset. Intraclass correlation coefficients (ICCs) indicated that the stability of age of onset reports decreased with longer time frames between follow-ups.…
Descriptors: Prevention, Drinking, Adolescents, Correlation