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Showing posts from August, 2011


Computation of heterogeneous correlations are feasible with the R-package polychor, which in version 18 of SPSS has an official interface (Analyze -> Correlate -> heterogeneous correlations). I have experienced numerical instabilities following calls to the SPSSINC HETCOR interface - but a direct call to R and polycor in regular SPSS syntax avoids these problems.