2017•The International Encyclopedia of Communication Research MethodsRequires access
Power Analysis
Shaojing Sun, Xitao Fan
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Abstract
Statistical power is an important factor for researchers to consider when designing and conducting quantitative studies. Lack of statistical power may lead to erroneous conclusions. To boost statistical power, however, may entail a larger sample size or better design to detect an effect size. This entry discusses the nature of statistical power, and further introduces basic procedures and caveats for conducting power analysis.