1. Empowerment in measurement: “muscle,” “voice,” and subjective quality of life as a gold standard 1 
Margaret Brown, PhD, Wayne A Gordon, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 85, Pages (April 2004)
DOI: /j.apmr

2. Fig 1
Probability that constructs selected for measurement are important to outsiders (O) and to measured insiders (I) on a 4-point continuum representing different approaches to selecting constructs and variables.
Archives of Physical Medicine and Rehabilitation  , 13-20DOI: ( /j.apmr )

3. Fig 2
Probability that measures of variables reflect the values of measured insiders (I) and reflect the interests of outsiders/researchers (O) on a 4-point continuum representing objective (point 1) and subjective (points 2–4) measures.
Archives of Physical Medicine and Rehabilitation  , 13-20DOI: ( /j.apmr )