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Person reliability of psychiatric patients' responses to a psychopathology inventory
G C Fekken1, R R Holden, D H Cotton
1Queen's University at Kingston, Canada.
Abstract:
Person-reliability indices can assist clinicians in determining the interpretability of a patient's responses to the Basic Personality Inventory (BPI). Using an initial sample of 65 psychiatric patients, we found that: (1) different person-reliability indices showed modest evidence of psychometric adequacy and tended not to be confounded with general psychopathology; (2) a content consistency index of person reliability was predictably related to other item change variables, whereas within-session profile stability was related to across-session measures of profile stability: and (3) evidence for the ability of person-reliability indices to moderate the validity of clinical criteria was weak. Results provide cautious support for a multidimensional conceptualization of the person reliability construct on the BPI but demand further evaluation of the clinical utility of person reliability indices.
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