What are the RS2 and RS3 check boxes in the table set up dialogue box?
These are the Rao-Scott approximations. They are adjustments to the Pearson chi-squared test. The RS2 uses a design effect adjustment and the RS3 is based on the Satterthwaite adjustment. In its simplest form, a Rao-Scott approximation is the chi-squared statistic divided by either the mean of the eigenvalues or the mean of the design effect for that cell.
