The GLMPOWER procedure covers power analysis for Type III tests and contrasts of fixed effects in univariate linear models, optionally with covariates. The covariates can be continuous or categorical. Tests and contrasts involving random effects are not supported.

The POWER procedure covers power analysis for the following:

• tests, equivalence tests, and confidence intervals for means

• tests, equivalence tests, and confidence intervals for binomial proportions

• multiple regression

• tests of correlation and partial correlation

• one-way analysis of variance

• rank tests for comparing two survival curves

• logistic regression with binary response

• Wilcoxon Mann-Whitney rank-sum test

The Power and Sample Size application covers a large subset of the analyses in the GLMPOWER and POWER procedures.