Profile validity standards for MMPI and MMPI-2 F scales

Although numerous indices of validity have been developed for the MMPI and MMPI-2, interest in the F scale and its variants continues, especially amon g practicing clinicians. The use of the binomial for assessing standards fo r random answering and possibly for judgments of malingering offers another approach for the interpretation of F-scale scores. The theoretical binomia l distribution and Monte Carlo data are in accord. Cut-off scores of 24 for the MMPI and 23 for the MMPI-2 suggest random responses, and scores of 40 and 37, respectively, suggest clinical interpretation rather than randomnes s of responding.