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A Statistical Perspective on the Design of Drug-Court Studies
* To whom correspondence should be addressed. E-mail: Elizabeth.merrall{at}mrc-bsu.cam.ac.uk.
Recent meta-analyses of drug-court studies recognized the poor methodological quality of the evaluations, with only a few being randomized. This article critiques the design of the randomized studies from a statistical perspective. Learning points are identified for future drug-court studies and are applicable to evaluations both of other specialist courts and of court-based interventions more generally. The specific issues covered are randomization, describing the intervention, and baseline characteristics; study outcomes, and sample size calculations; in-program and postprogram behavior, analysis plan, and presentation of results.
First published on February 18, 2009, doi:10.1177/0193841X08330819 |
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