Journal of Educational Measurement, Vol. 38, No. 4, Measurement Update for the 21st Century (Winter, 2001), pp. 343-368 (26 pages) Cognitive psychology principles have been heralded as possibly ...

Psychologists say a measure has construct validity when it, in fact, measures the construct it is intended to measure. Construct validity is both an important notion in psychological research methods ...

Background: Disease-specific Quality Of Life (QOL) measures are devised to assess the impact of a specific disease across a spectrum of important domains of life. The purpose of this study was to ...

The exponential growth of quality of life studies over the last three decades appears to be the cause of increased interest in rigorous evaluation of therapeutic interventions. General-health ...