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MacKinnon, David P.; Dwyer, James H. – Evaluation Review, 1993
Statistical approaches to assess how prevention and intervention programs achieve their effects are described and illustrated through the evaluation of a health promotion program to reduce dietary cholesterol and a school-based drug prevention program. Analyses require the measurement of intervening or mediating variables to represent the…
Descriptors: Causal Models, Disease Control, Drug Use, Equations (Mathematics)