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Development and evaluation of problem frequency scales from version 3 of the computerized assessment system for psychotherapy evaluation and research (CASPER)
Author(s) -
Farrell Albert D.
Publication year - 1999
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/(sici)1097-4679(199904)55:4<447::aid-jclp9>3.0.co;2-#
Subject(s) - psychology , psychotherapist , psychometrics , psychological testing , validation test , test validity , clinical psychology , applied psychology
A comprehensive analysis of interview items on the Computerized Assessment System for Psychotherapy Evaluation and Research (CASPER) was conducted using derivation ( N = 1,168) and cross‐validation samples ( N = 1,158) from a university counseling center and an outpatient training clinic sample ( N = 355). Nine scales were identified that demonstrated acceptable internal consistency and unidimensionality. Confirmatory factor analyses of 6 of these scales supported the presence of 6 factors, but indicated that several were highly intercorrelated. These findings were consistent across all 3 samples. Analyses relating these 6 scales to comparable scales on the Brief Symptom Inventory (BSI) obtained for the training clinic sample indicated a high degree of correspondence across instruments. In addition, significant correlations were found between global measures obtained from CASPER and the BSI. © 1999 John Wiley & Sons, Inc. J Clin Psychol 55: 447–464, 1999.