TTEST Subcommand (MVA command)

For each quantitative variable, a series of t tests are computed to test the difference of means between two groups defined by a missing indicator variable for each of the other variables. (See the topic Missing Indicator Variables (MVA command) for more information. ) For example, a t test is performed on populatn between two groups defined by whether their values are present or missing for calories. Another t test is performed on populatn for the two groups defined by whether their values for density are present or missing, and the tests continue for the remainder of the variable list.

PERCENT=n. Omit indicator variables with less than the specified percentage of missing values. You can specify a percentage from 0 to 100. The default is 5, indicating the omission of any variable with less than 5% missing values. If you specify 0, all rows are displayed.