Problems in developing an instrument for the rapid assessment of personality status
- 1 June 2000
- journal article
- Published by Cambridge University Press (CUP) in European Psychiatry
- Vol. 15 (S1), 29-33
- https://doi.org/10.1016/s0924-9338(00)00497-1
Abstract
SummaryPurposeTo assess the validity of a quick assessment instrument (10 minutes) for assessing personality status, the Rapid Personality Assessment Schedule (PAS-R).Subjects and methodsThe PAS-R was evaluated in psychotic patients recruited in one of the centres involved in a multicentre randomised controlled trial of intensive vs standard case management (the UK700 case management trial). Patients were assessed using both a full version of the PAS (PAS-I – ICD version) and the PAS-R. The weighted kappa statistic was used to gauge the (criterion-related) validity of the PAS-R using the PAS-I as the gold standard. Both measure code personality status using a four-point rating of severity in addition to recording individual categories of personality disorder.ResultsOne hundred fifty-five (77%) of 201 patients recruited were assessed with both instruments. The weighted kappa statistic was 0.31, suggesting only moderate agreement between the PAS-I and PAS-R instruments under the four-point rating format, and 0.39 for the dichotomous personality disorder/no disorder separation. The sensitivity (64%) and specificity (82%) of the PAS-R in predicting PAS-I personality disorder were as satisfactory as for other screening instruments but still somewhat disappointing, and the PAS-R had an overall diagnostic accuracy of 78%.ConclusionThe PAS-R is a quick and rough method of detecting personality abnormality but is not a substitute for a fuller assessment.Keywords
This publication has 15 references indexed in Scilit:
- An assessment of the Standardized Assessment of Personality as a screening instrument for the International Personality Disorder Examination: a comparison of informant and patient assessment for personality disorder.Psychological Medicine, 1999
- Intensive versus standard case management for severe psychotic illness: a randomised trialThe Lancet, 1999
- The Iowa Personality Disorder Screen: Development and Preliminary Validation of a Brief Screening InterviewJournal of Personality Disorders, 1999
- Comparison of intensive and standard case management for patients with psychosisThe British Journal of Psychiatry, 1999
- Interrater Reliability of ICD-10 Guidelines for the Diagnosis of Personality DisordersJournal of Personality Disorders, 1994
- Who gives the most reliable account of a psychiatric patient's personality?Irish Journal of Psychological Medicine, 1992
- Personality and psychosis: use of the Standardized Assessment of PersonalityActa Psychiatrica Scandinavica, 1986
- Temporal reliability of personality in psychiatric patientsPsychological Medicine, 1983
- Classification of Personality DisorderThe British Journal of Psychiatry, 1979
- Eysenck Personality Inventory Scores of Patients with Depressive IllnessesThe British Journal of Psychiatry, 1968