J. R. Vokey
Jun 1, 1997
Behavior Research Methods, Instruments, & Computers
Simpson’s paradox results from the collapsing of multiway contingency tables in the presence of nonadditivity. An extension of the iterative proportional fitting algorithm (Deming & Stephan, 1940) is described that may be used to homogenize such tables to produce the required additivity over the unwanted (collapsed-over) effects.