#### 15.12.12 Sign Test ¶

         [ /SIGN var_list [ WITH var_list [ (PAIRED) ]]]

The `/SIGN` subcommand tests for differences between medians of the variables listed. The test does not make any assumptions about the distribution of the data.

If the `WITH` keyword is omitted, then tests for all combinations of the listed variables are performed. If the `WITH` keyword is given, and the `(PAIRED)` keyword is also given, then the number of variables preceding `WITH` must be the same as the number following it. In this case, tests for each respective pair of variables are performed. If the `WITH` keyword is given, but the `(PAIRED)` keyword is omitted, then tests for each combination of variable preceding `WITH` against variable following `WITH` are performed.