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ERIC Number: ED518827
Record Type: Non-Journal
Publication Date: 2011
Pages: 10
Abstractor: ERIC
Reference Count: 24
ISBN: N/A
ISSN: N/A
A Framework for Designing Cluster Randomized Trials with Binary Outcomes
Spybrook, Jessaca; Martinez, Andres
Society for Research on Educational Effectiveness
The purpose of this paper is to provide a frame work for approaching a power analysis for a CRT (cluster randomized trial) with a binary outcome. The authors suggest a framework in the context of a simple CRT and then extend it to a blocked design, or a multi-site cluster randomized trial (MSCRT). The framework is based on proportions, an intuitive parameter when the outcome is binary. In addition, they provide sample power tables to provide readers with some intuition regarding sample sizes for CRTs with binary outcomes. (Contains 1 figure, 1 table, and 2 footnotes.)
Society for Research on Educational Effectiveness. 2040 Sheridan Road, Evanston, IL 60208. Tel: 202-495-0920; Fax: 202-640-4401; e-mail: inquiries@sree.org; Web site: http://www.sree.org
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: Society for Research on Educational Effectiveness (SREE)