# pwr v1.2-2

0

0th

Percentile

## Basic Functions for Power Analysis

Power analysis functions along the lines of Cohen (1988).

## Functions in pwr

 Name Description pwr.2p.test Power calculation for two proportions (same sample sizes) pwr.anova.test Power calculations for balanced one-way analysis of variance tests pwr.chisq.test power calculations for chi-squared tests pwr.t.test Power calculations for t-tests of means (one sample, two samples and paired samples) pwr.t2n.test Power calculations for two samples (different sizes) t-tests of means ES.h Effect size calculation for proportions ES.w1 Effect size calculation in the chi-squared test for goodness of fit pwr.f2.test Power calculations for the general linear model pwr.norm.test Power calculations for the mean of a normal distribution (known variance) plot.power.htest Plot diagram of sample size vs. test power pwr-package Basic Functions for Power Analysis pwr ES.w2 Effect size calculation in the chi-squared test for association cohen.ES Conventional effects size pwr.2p2n.test Power calculation for two proportions (different sample sizes) pwr.p.test Power calculations for proportion tests (one sample) pwr.r.test Power calculations for correlation test No Results!