Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2004

PDF

University of Massachusetts Medical School

Adaptation, Psychological; Humans; *Models, Psychological; Observer Variation; Psychometrics; Quality of Life; Reproducibility of Results; *Sickness Impact Profile; Time Factors

Articles 1 - 1 of 1

Full-Text Articles in Life Sciences

Reconsidering The Psychometrics Of Quality Of Life Assessment In Light Of Response Shift And Appraisal, Carolyn E. Schwartz, Bruce D. Rapkin Mar 2004

Reconsidering The Psychometrics Of Quality Of Life Assessment In Light Of Response Shift And Appraisal, Carolyn E. Schwartz, Bruce D. Rapkin

Open Access Articles

The increasing evidence for response shift phenomena in quality of life (QOL) assessment points to the necessity to reconsider both the measurement model and the application of psychometric analyses. The proposed psychometric model posits that the QOL true score is always contingent upon parameters of the appraisal process. This new model calls into question existing methods for establishing the reliability and validity of QOL assessment tools and suggests several new approaches for describing the psychometric properties of these scales. Recommendations for integrating the assessment of appraisal into QOL research and clinical practice are discussed.