This document summarizes the methods of comparing group means and illustrates how to conduct t-tests and one-way ANOVA using Stata 11, SAS
9.2, R, and SPSS 17.
The citation of this document should read: "Park, Hun Myoung. 2009. Comparing
Group Means: T-tests and One-way ANOVA Using Stata, SAS, R, and SPSS
. Working Paper. The University Information
Technology Services (UITS) Center for Statistical and Mathematical Computing, Indiana University."