반응형
We usually use 0.8 power in social science.
Calculator:
Universität Düsseldorf: gpower
G*Power is a tool to compute statistical power analyses for many different t tests, F tests, χ2 tests, z tests and some exact tests. G*Power can also be used to compute effect sizes and to display graphically the results of power analyses. Whenever we find
www.psychologie.hhu.de
Effect Size d:
Cohen suggested that d=0.2 be considered a 'small' effect size, 0.5 represents a 'medium' effect size and 0.8 a 'large' effect size. This means that if two groups' means don't differ by 0.2 standard deviations or more, the difference is trivial, even if it is statistically signficant.
Cohen's d calculator: https://www.socscistatistics.com/effectsize/default3.aspx
반응형
'Statistics' 카테고리의 다른 글
| Mauchly's Test of Sphericity with Repeated Measures ANOVA in SPSS (0) | 2019.12.17 |
|---|---|
| Repeated Measures ANOVA SPSS (0) | 2019.10.29 |
| Repeated Measures ANOVA (Definition) (0) | 2019.10.29 |
| Statistics Calculator - DanielSoper.com (0) | 2019.10.05 |
| Anova SPSS Handouts (0) | 2019.10.02 |