G Power Calculator For Multiple Regression. GPower supports both a distribution-based and a design-based input mode. GPower is free software and available for Mac OS X and Windows XPVista78.
F 2 166667. Viewed 26 times 0 begingroup I conducted a multiple regression analysis in SPSS with one dependent variable interval ratio and in the first block gender as confound variable interval ratio second block one. Fixed model R 2 increase.
Under Statistical test select Linear Multiple Regression.
Techniques they all give the same effect size synch the values and then calculate effect size g. Post-hoc Statistical Power Calculator for Multiple Regression This calculator will tell you the observed power for your multiple regression study given the observed probability level the number of predictors the observed R2 and the sample size. GPower can also be used to compute effect sizes and to display graphically the results of power analyses. It contains also a calculator that supports many central and noncentral probability distribu-tions.
