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A short tutorial of GPower

2007; University of Ottawa; Volume: 3; Issue: 2 Linguagem: Inglês

10.20982/tqmp.03.2.p051

1913-4126

Susanne Mayr, Edgar Erdfelder, Axel Buchner, Franz Faul,

Smart Grid Energy Management

The purpose of this paper is to promote statistical power analysis in the behavioral sciences by introducing the easy to use GPower software.GPower is a free general power analysis program available in two essentially equivalent versions, one designed for Macintosh OS/OS X and the other for MS-DOS/Windows platforms.Psychological research examples are presented to illustrate the various features of the GPower software.In particular, a priori, post-hoc, and compromise power analyses for t-tests, F-tests, and χ 2 -tests will be demonstrated.For all examples, the underlying statistical concepts as well as the implementation in GPower will be described.