Article : Périodique

Classroom-based surveys of adolescent risk-taking behaviors: reducing the bias of absenteeism

GUTTMACHER S. ; B. C. WEITZMAN ; F. KAPADIA ; WEINBERG S. L. |

Dans American Journal of Public Health (Vol.92 n°2, 2002)

ENGLISH : Objectives. This investigation examined the effectiveness of intensive efforts to include frequently absent students in order to reduce bias in classroom-based studies. Methods. Grade 10 students in 13 New York City high schools (n =[...]

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