MMPI indices in the identification of patients evidencing pseudoseizures.

Data are presented on the clinical utility of two Minnesota Multiphasic Personality Inventory (MMPI) indices, the Pseudo-Neurologic (Pn) Scale developed by Shaw and Matthews and the configural rule system developed by Wilkus et al. for the prediction of pseudoseizures. Particular attention is given to base rates, hit rates, and error rates in the analyses. Only the configural rule system was found to be of clinical value in ruling out the probability of pseudoseizures.