The Safer Choices Project: Methodological Issues in School‐Based Health Promotion Intervention Research
1997; Wiley; Volume: 67; Issue: 9 Linguagem: Inglês
10.1111/j.1746-1561.1997.tb07176.x
ISSN1746-1561
AutoresKaren Basen‐Engquist, Guy S. Parcel, Ronald B. Harrist, Douglas Kirby, Karin Coyle, Stephen W. Banspach, Deborah Rugg,
Tópico(s)Statistical Methods in Epidemiology
ResumoABSTRACT: Randomized trials of school‐based health promotion programs present unique design and analytical issues not widely discussed in the research literature. This article describes the Safer Choices study – a school‐based program for prevention of HIV, other sexually transmitted diseases, and pregnancy – to illustrate critical methodological issues involved in large‐scale, schoolbased intervention trials, particularly those evaluating interventions with a school‐wide focus. The issues presented are: 1) comparability of the intervention and control groups even when few units are randomized: 2) factors that affect the decision to use a cohort or cross‐sectional design: and 3) appropriate analysis strategy when the unit of randomization and intervention is at the school level, but observations are at the student level.
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