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001-es BibID:BIBFORM034461
035-os BibID:PMID:9133752 WOS:A1997WU64600009
Első szerző:Edson, Robert
Cím:Interrater reliability issues in multicenter trials, part II : statistical procedures used in Department of Veterans Affairs Cooperative Study #3941 / Edson, R., Lavori, P., Tracy, K., Adler, L. A., Rotrosen, J., Gowda, S., Mukherjee, S., Williams, B., Duncan, E., Vaid, G., Schwartz, M., Hitzemann, R., Frecska, E., Manicone, P., Caroff, S., Campbell, E. C., Havey, J., Casey, D., Hoffman, W., Hansen, T., Brundage, T., Hixs, M., Hanna, M., Lohr, J., Browning, J., Kanof, P., Fain, R., Krystal, J., DSouza, D. C., Damon, D., Marder, S. S., Ames, D., Ross, D., Doorack, J., Hitzemann, R., Haakenson, C., Miller, M.
Dátum:1997
ISSN:0006-3223
Megjegyzések:The primary goal of Veterans Affairs (VA) Cooperative Study (CS) #394 is to determine if vitamin E is a safe and efficacious treatment for tardive dyskinesia (TD). The study uses various instruments to assess subjects for movement disorders (Abnormal Involuntary Movement Scale [AIMS], and Barnes Akathisia Scale [BAS]), psychopathology (Anchored Brief Psychiatric Rating Scale [BPRS]), and level of functioning (Global Assessment of Functioning scale [GAF]). Since the study involves nine sites, each with its own set of raters, it is important to establish and maintain high interrater reliability (IRR) on these instruments throughout the study and to identify raters who differ significantly from the others. To make this determination, personnel at each site assessed subjects from standardized videotapes on the AIMS, BAS, and Anchored BPRS, and rated written vignettes on the GAF. We fit these data to a two-way additive model to identify nonstandardized raters (i.e., those whose average ratings were significantly lower or higher than the others, or those whose scores, after adjusting for subject and rater effects, were highly variable). The proportion of nonstandardized raters ranged from 7 percent (Anchored BPRS) to 33 percent (AIMS). The estimated intraclass correlation coefficients (ICCs) indicated moderate reliability for the AIMS, BAS, and Anchored BPRS (0.73 to 0.75) and excellent agreement for the GAF (0.90). The companion article (Part I: Tracy et al. 1997, page 53 of this issue) describes the procedures used to train the raters for this study.
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Megjelenés:Psychopharmacology Bulletin. - 33 : 1 (1997), p. 59-67. -
További szerzők:Lavori, Philip Tracy, Kathlene Adler, Lenard A. Rotrosen, John Gowda, S. Mukherjee, Subhendu Williams, B. Duncan, E. Vaid, G. Schwartz, M. Hitzemann, Robert Frecska Ede (1953-) (pszichiáter) Manicone, P. Caroff, Stanley Campbell, E. C. Havey, J. Casey, D. Hoffman, W. Hansen, T. Brundage, T. Hixs, M. Hanna, M. Lohr, J. Browning, J. Kanof, P. Fain, R. Krystal, J. DSouza, D. C. Damon, D. Marder, S. S. Ames, D. Ross, David Doorack, J. Hitzemann, R. Haakenson, C. Miller, M.
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