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MSE is a logical format. The standard setting is NMSE (false).

MSE instructs CL to output a statistics row with the value of the mean (AVG) divided by the standard error (SER).

Where the expected mean score is 0.0, MSE gives a paired t-test value.

Format MSE takes effect when a number is used as the rows or for row questions with label control <V> (value) set.

To perform a paired t-test subtract one value from the other to use as the rows.  Be careful not to include missing values.

Format PRO controls whether the t value is followed by probability values or significance levels.

See also format:

AVG Averages or mean scores

PRO Probability or significance level

SER Standard Errors