MISSING Subcommand (T-TEST command)

MISSING controls the treatment of missing values. The default is ANALYSIS.

• ANALYSIS and LISTWISE are alternatives; however, each can be specified with INCLUDE.

ANALYSIS. Delete cases with missing values on an analysis-by-analysis or pair-by-pair basis. For independent-samples tests, cases with missing values for either the grouping variable or the dependent variable are excluded from the analysis of that dependent variable. For paired-samples tests, a case with a missing value for either of the variables in a given pair is excluded from the analysis of that pair. This is the default.

LISTWISE. Exclude cases with missing values listwise. A case with a missing value for any variable specified on either GROUPS or VARIABLES is excluded from any independent-samples test. A case with a missing value for any variable specified on PAIRS is excluded from any paired-samples test.

INCLUDE. Include user-missing values. User-missing values are treated as valid values.