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Esbensen, Finn-Aage; Melde, Chris; Taylor, Terrance J.; Peterson, Dana – Evaluation Review, 2008
Active parental consent policies have been blamed for low participation rates and selection bias (i.e., loss of "high-risk" youths) in school-based studies. In this article, the authors describe active consent procedures that produced an overall active consent rate of 79% in a sample of more than 4,500 middle school students attending 29…
Descriptors: Attrition (Research Studies), Educational Research, School Surveys, Parent Rights