THE VKP, A SELF-REPORT INSTRUMENT FOR DSM-III-R AND ICD-10 PERSONALITY-DISORDERS - CONSTRUCTION AND PSYCHOMETRIC PROPERTIES

In this paper the development of a self-report instrument, the VKP, fo r the assessment of criteria and diagnoses of personality disorders is described. Also a computer program was developed so that subjects can register their self-report replies at the keyboard, and for scoring a nd reporting. Results of 1056 subjects of which 366 were patients, sho wed that the prevalence of ail specific DSM-III-R and ICD-10 personali ty disorders was much higher for patients than for normal subjects. Th e internal consistency for all subjects was 0.66 for DSM-III-R and 0.6 4 for ICD-10. Temporal stability of the self-report was investigated f or 69 mental health care outpatients. Test-retest with a mean interval of 221 days (SD = 123.6; range 26-466 days), showed dimensional scale -scores to be moderately stable over time (DSM-III-R: mean r = 0.62; I CD-10: mean r = 0.56). The corresponding diagnoses according to the DS M-III-R and the ICD-10 system showed only moderate agreement.