The North Carolina Dissociation Index: a measure of dissociation using items from the MMPI-2.
The development of a new measure of dissociation using items from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) is described. In Experiment 1, 525 college students were administered a measure of hypnotic susceptibility and completed several specialized measures of dissociation or dissociation-like experiences. The new measure, the North Carolina Dissociation Index (NCDI) demonstrated adequate internal consistency and good convergent validity. In Experiment 2, the NCDI demonstrated adequate internal consistency and test-retest reliability with a different sample of college students. Moreover, NCDI scores showed a relatively strong correlation with an interview-based measure of dissociative symptoms. In addition, a small sample of students with dissociative disorders had significantly higher NCDI scores than students with anxiety disorders and normal control subjects. In Experiment 3, 19 gang combat veterans were administered a semistructured diagnostic interview and the MMPI-2. Subjects who were diagnosed with Posttraumatic Stress Disorder (PTSD) scored significantly higher on the NCDI than subjects who did not have PTSD. The NCDI is intended primarily as a tool in settings where the MMPI-2 is routinely administered.
Mann
B J
BJ
Department of Psychology, University of North Carolina, Chapel Hill 27599-3270, USA.
D000293:Adolescent; D000328:Adult; D001008:Anxiety Disorders / Q000145:classification / Q000175:diagnosis / Q000523:psychology; D004213:Dissociative Disorders / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D006990:Hypnosis; D007604:Juvenile Delinquency / Q000523:psychology; D008950:MMPI / Q000706:statistics & numerical data*; D008297:Male; D010552:Personality Assessment / Q000706:statistics & numerical data; D011594:Psychometrics; D015203:Reproducibility of Results; D013313:Stress Disorders, Post-Traumatic / Q000145:classification / Q000175:diagnosis / Q000523:psychology; D014744:Vietnam