List of terms

    GPower

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    Definition

    Free to use statistical software for performing power analyses. The user specifies the desired statistical test (e.g. t-test, regression, ANOVA), and three of the following: the number of groups/observations, effect size, significance level, or power, in order to calculate the unspecified aspect.

    Related terms: Power analysis, Sample size justification, Sample size planning, Statistical power

    References:

    • Faul, F., Erdfelder, E., Lang, A.-G., & Buchner, A. (2007). G*Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behavior Research Methods, 39, 175–191. https://doi.org/10.3758/BF03193146
    • Faul, F., Erdfelder, E., Buchner, A., & Lang, A.-G. (2009). Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses. Behavior Research Methods, 41, 1149–1160. https://doi.org/10.3758/BRM.41.4.1149

    Originally drafted by: Filip Dechterenko

    Reviewed by: Thomas Rhys Evans, Kai Krautter, Charlotte R. Pennington

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