1. Response Shift Theory: Important Implications for Measuring Quality of Life in People With Disability 
Carolyn E. Schwartz, ScD, Elena M. Andresen, PhD, Margaret A. Nosek, PhD, Gloria L. Krahn, PhD, MPH 
Archives of Physical Medicine and Rehabilitation 
Volume 88, Issue 4, Pages (April 2007)
DOI: /j.apmr
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig 1 The Sprangers and Schwartz9 response shift model of QOL.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig 2
Effect indicators versus causal indicators. An example of the distinction between effect and causal indicators of HRQOL.16,17,52
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions