Dodd, Cody, Seth C. Courrégé, Nathan C. Weed, & Mark A. Deskovitz (2020, January). A comparison of the descriptive information from the MMPI-2 and MMPI-2-RF. Journal of Personality Assessment, 102(1), 45-55. (doi: 10.13140/RG.2.2.11879.14249) (Link: https://doi.org/10.1080/00223891.2018.1504054)
Abstract: Do MMPI-2 or MMPI-2-RF profiles differ in how accurately they depict examinees? To explore this question, we examined differences in clinical descriptions of equivalent profiles from the two instruments. Fourteen valid MMPI-2 protocols from an archival private practice sample were scored as both the MMPI-2 and the MMPI-2- RF. The resulting 28 profiles were coded separately by four raters using the Midwestern Q-Sort. Examinee descriptions from the two instruments were compared in terms of their: (1) similarity, operationalized by q-correlations between corresponding MMPI-2 and MMPI-2- RF ratings; (2) descriptive validity, operationalized by correlations with q-sorts provided by the examinees’ therapists; and (3) incremental descriptive validity, operationalized by incremental prediction of the therapist q-sorts by the MMPI-2 and MMPI-2- RF, one over the other. Descriptions from corresponding MMPI-2 and MMPI-2- RF score reports were highly intercorrelated. Ratings from both were valid predictors of therapist descriptions, and neither clearly outperformed the other in terms of incremental validity.
Cody G Dodd <firstname.lastname@example.org> is in the Department of Psychology, Central Michigan University, Mount Pleasant, MI, USA.