BIAS IN THE MEASUREMENT OF QUALITY OF LIFE: RESPONSE SHIFT
Yeşim,,ŞENOL*, Mehtap,,TÜRKAY.
Abstract
Quality of Life (QoL) is a descriptive term that refers to peoples emotional, social and physical wellbeing, and their ability to function in the ordinary task of living. The importance of QoL makes it critical to improve and refine measure to understand patients experience of health, illness and treatment. However individuals change with time and the basis on which they make a QoL judgment may also change, a phenomenon increasingly referred to as response shift. The definition of response shift is recalibration of internal standards of measurement and reconceptualization of the meaning of item. The purpose of study is to discuss the effects of response shift bias.
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