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Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

1996

Statistics and Probability

Virginia Commonwealth University

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Full-Text Articles in Physical Sciences and Mathematics

Power Analysis For The Mixed Linear Model, Cheryl Annette Dixon Jan 1996

Power Analysis For The Mixed Linear Model, Cheryl Annette Dixon

Theses and Dissertations

Power analysis is becoming standard in inference based research proposals and is used to support the proposed design and sample size. The choice of an appropriate power analysis depends on the choice of the research question, measurement procedures, design, and analysis plan. The "best" power analysis, however, will have many features of a sound data analysis. First, it addresses the study hypothesis, and second, it yields a credible answer.

Power calculations for standard statistical hypotheses based on normal theory have been defined for t-tests through the univariate and multivariate general linear models. For these statistical methods, the approaches to power …