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

GUTTMACHER S. ; B. C. WEITZMAN ; F. KAPADIA ; WEINBERG S. L. | 2002
Dans American Journal of Public Health (Vol.92 n°2, 2002) Article : Périodique

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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Low response rate schools in surveys of adolescent risk taking behaviours: possible biases, possible solutions

B. C. WEITZMAN ; GUTTMACHER S. ; WEINBERG S. ; F. KAPADIA | 2003
Dans Journal of Epidemiology and Community Health (Vol.57, n°1, January 2003) Article : Périodique

Study objective: To examine the potential biases introduced when students in low response rate schools are dropped from classroom based surveys of adolescent risk taking behaviour. Design: Self administered confidential surveys were conducted in[...]

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