Development and evaluation of problem frequency scales from version 3 of the Computerized Assessment System for Psychotherapy Evaluation and Research(CASPER)

A comprehensive analysis of interview items on the Computerized Assessment System for Psychotherapy Evaluation and Research (CASPER) was conducted usi ng derivation (N = 1,168) and cross-validation samples (N = 1,158) from a u niversity counseling center and an outpatient training clinic sample (N = 3 55). Nine scales were identified that demonstrated acceptable internal cons istency and unidimensionality. Confirmatory factor analyses of 6 of these s cales 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 Sympto m Inventory (BSI) obtained for the training clinic sample indicated a high degree of correspondence across instruments. In addition, significant corre lations were found between global measures obtained from GASPER and the BSI . (C) 1999 John Wiley & Sons, Inc.