1. Measuring Health Perceptions in the Health Insurance Experiment;Davies,1981
2. Health Status: types of validity and the Index of Well-being;Kaplan;Health Serv Res,1976
3. The Sickness Impact Profile: development and final revision of a health status measure;Bergner;Med Care,1981
4. Development and Validation of Scales to Measure Perceived Health and Patient Role Propensity: Volume II of a Final Report;Ware,1976
5. Scales for measuring general health perceptions;Ware;Health Serv Res,1976