Cluster versus individual randomization in adolescent tobacco and alcohol studies: illustrations for design decisions | Zendy

Donald J. Slymen | Zendy; MF Hovell | Zendy

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Cluster versus individual randomization in adolescent tobacco and alcohol studies: illustrations for design decisions

Author(s) -

Donald J. Slymen,

MF Hovell

Publication year - 1997

Publication title -

international journal of epidemiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.406

H-Index - 208

eISSN - 1464-3685

pISSN - 0300-5771

DOI - 10.1093/ije/26.4.765

Subject(s) - randomization , intraclass correlation , cluster randomised controlled trial , cluster (spacecraft) , sample size determination , statistics , context (archaeology) , restricted randomization , sample (material) , randomized controlled trial , medicine , demography , mathematics , computer science , psychometrics , surgery , geography , chemistry , chromatography , sociology , programming language , archaeology

The decision to randomize by clusters of subjects such as a classroom or clinic versus individual randomization where some contamination may occur is examined within the framework of sample size issues. Estimates for background rates and intraclass correlations are also provided for adolescent tobacco and alcohol outcomes derived from a recent study using cluster randomization.

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