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A Proposed Method for Measuring Change Beyond Symptoms
Daniel S. Weiss, PhD;
Kathryn N. DeWitt, PhD;
Nancy B. Kaltreider, MD;
Mardi J. Horowitz, MD
Arch Gen Psychiatry. 1985;42(7):703-708.
Abstract
• The initial report of the Patterns of Individual Change Scales battery presented the rationale, development, and conceptualization of this measurement package. Empirical data supported the reliability and validity of the scales as measures of patient characteristics that extended beyond the symptomatic domain. This article presents more extensive reliability and validity data. Ratings on two new samples were collected, and the interrater reliability coefficients for the scales were again of appreciable magnitude. Discriminant validity was examined, as was the factor structure of the battery. The results suggested that the scales tap three distinct sources of variance. Comparisons with symptom measures and case illustrations indicated that the measurement of changes in patients' functioning beyond symptoms is necessary and viable.
Author Affiliations
From the Center for the Study of Neuroses (Drs Weiss, Kaltreider, and Horowitz), Department of Psychiatry (Drs Weiss, DeWitt, Kaltreider, and Horowitz), and Langley Porter Psychiatric Institute (Drs Weiss, DeWitt, Kaltreider, and Horowitz), University of California, San Francisco.
Footnotes
Accepted for publication May 17, 1984.
Reprint requests to Box 37-A, Department of Psychiatry, 401 Parnassus Ave, University of California, San Francisco, CA 94143 (Dr Weiss).
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