Ij. Duijsens et al., THE VKP, A SELF-REPORT INSTRUMENT FOR DSM-III-R AND ICD-10 PERSONALITY-DISORDERS - CONSTRUCTION AND PSYCHOMETRIC PROPERTIES, Personality and individual differences, 20(2), 1996, pp. 171-182
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.