Operationalizing the triarchic model of psychopathy in adolescents using the MMPI-A-RF (Restructured Form).

The triarchic model is an increasingly influential multidimensional model of psychopathy that focuses on three distinct phenotypic domains of boldness, meanness, and disinhibition. Although originally operationalized through the Triarchic Psychopathy Measure (TriPM), the triarchic model has also been operationalized through items of existing psychopathy and personality measures that provide sufficient content coverage of the triarchic dimensions. The current study aimed to provide a means for enhancing understanding of psychopathic features in adolescents through the development and validation of triarchic scales using items from the Minnesota Multiphasic Personality Inventory-Adolescent-Restructured Form (MMPI-A-RF).

Effective cutoffs for detecting random, partially random, and nonrandom 350-item MMPI--a short form protocols.

The ability of the 350-item short form Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A; Butcher et al., 1992) validity scales to detect random protocols was investigated using samples of 250 nonrandom protocols, 250 half-random protocols, and 250 all-random protocols. As the manual warns, long form cutoffs of the Variable Response Inconsistency scale (VRIN) of 75T and the Infrequency scale (F) of 90T were ineffective in detecting random protocols.

Effective cutoffs for detecting random, partially random, and nonrandom 370-item MMPI-2 short form protocols.

The ability of the 370-item short form MMPI-2 (Butcher, Graham, Ben-Porath, Tellegen, Dahlstrom, & Kaemmer, 2001) validity scales to detect random protocols was investigated using samples of 500 nonrandom protocols, 250 half-random protocols, and 250 all-random protocols. The long-form cutoff of VRIN ≥ 80 was unable to detect protocols with either level of randomness. The long-form cutoffs of Fp ≥ 100 or F ≥ 100 were able to detect all-random but not half-random protocols.

Detecting random, partially random, and nonrandom Minnesota Multiphasic Personality Inventory-2 protocols.

The ability of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; J. N. Butcher et al.

Updating the Jesness Inventory randomness validity scales for the Jesness Inventory-Revised.

I updated 2 previously developed randomness scales for the Jesness Inventory (Jesness, 1983)-the Jesness Variable Response Inconsistency scale (J-VRIN) and the Variable Response scale (J-VR)-for the Jesness Inventory-Revised (Jesness-R; Jesness, 2003). I investigated efficacies for those 2 scales and a 3rd randomness scale described in the Jesness-R manual, the Randomness scale (J-RR), by comparing 76 protocols of delinquents, ages 13 to 17 years, screened for probable randomness with a matched-pair MMPI-Adolescent (Butcher et al., 1992) or a Millon Adolescent Clinical Inventory (Millon, Millon, & Davis, 1993), with 100 all-random protocols, and 40 partially random protocols.

Detecting random, partially random, and nonrandom Minnesota Multiphasic Personality Inventory-Adolescent protocols.

The ability of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A; J. N. Butcher et al.

A Variable Response Inconsistency scale and a True Response Inconsistency scale for the Millon Adolescent Clinical Inventory.

Variable Response Inconsistency (M-VRIN) and True Response Inconsistency (M-TRIN) scales were developed for the Millon Adolescent Clinical Inventory using 104 male and 78 female delinquents, ages 13-17 years. M-VRIN efficacy was assessed by comparing nonrandom protocols of 76 male and 34 female delinquents, ages 13-17 years, with 100 computer-generated random protocols. Nonrandom protocols were screened using a matched-pair Minnesota Multiphasic Personality Inventory-Adolescent or Jesness Inventory.