Find out how to use StatPlus:mac. Tutorials for current version v5 coming soon.
Descriptive Statistics The Descriptive Statistics procedure displays univariate summary statistics for several variables (columns). Descriptive statistics can be used to describe the basic features of the data in a study. It provides simple summaries about the sample and the measures. Together with simple graphics analysis, it can form the basis of virtually every quantitative analysis of data.
Comparing Means The Comparing Means procedure compares the means of two variables. To compare means StatPlus uses two sample t-test, Pagurova criterion and G-criterion. The t-test (Student's t-test) assesses whether the means of two groups are statistically different from each other. This analysis is appropriate whenever you want to compare the means of two groups, and especially appropriate as the analysis for the posttest-only two-group randomized experimental design.