These estimates should preferably be in terms of internal-consistency or split-half reliability. However, given that the WCST/MCST does not possess an adequate item structure, re-test reliabilities are probably what one could get.
We would be interested in obtaining reliability estimates for a) the number of categories and b) for measures of perseverative behavior.
Thanks to everybody who considers this question.
A PsycINFO search for "Wisconsin Card Sort* Test" AND "reliability," limited to English-language journals, yields slightly over 200 hits. Only a subset are explicitly presented as studies of test reliability, but many others should include reliability data for their samples. (Of course, others will turn out to be irrelevant.) I've downloaded a few & attached them here, but it looks like there's a lot more out there.
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