Reliability
Andresen E, Catlin T, Wyrwich K, Jackson-Thompson J. (2001) Retest reliability and validity of a surveillance measure of health-related quality of life. Quality of Life Research. 2001;10(3):199.
Andresen E, Vahle V, Lollar D. Proxy reliability: Health-related quality of life (HRQOL) measures for people with disability. Quality of Life Research. 10:609–619;2001.
Andresen E, Catlin T, Wyrwich K, Jackson-Thompson J. Retest reliability of surveillance questions on health related quality of life. J Epidemiol Community Health. 2003;57(5):339-343.