Updating the Jesness Inventory randomness validity scales for the Jesness Inventory-Revised |
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Authors: | Pinsoneault Terry B |
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Affiliation: | Institute for the Study of Interpersonal Violence, Cleveland, Ohio, USA. tpinsoneault@neo.rr.com |
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Abstract: | 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. J-VRIN and J-VR in conjunction successfully detected 98% of the all-random protocols and 83% of the partially random protocols. J-RR successfully detected 19% and 10%, respectively. I report predictive power and overall effectiveness for base rates of .10 and .20. |
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