Michael Hoerger
PhD, MSCR
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Calculators
Mean Differences
Between-group Cohen's d from M, SD, n
Between-group Cohen's d from t, df
Repeated-measures Cohen's d from M, SD, r
Between-group t-test from M, SD, n
Differences in Proportions
Z-test for Between-group Proportions
Chi Square for Observed vs. Expected Frequencies
Differences in Correlations
Z-test for Dependent Correlations
Z-test for Independent Correlations
Logistic Regression
Standardized Betas from SPSS Logistic Regression