Cook, Karon F.; Ashton, Carol M.; Byrne, Margaret M.; … - In: Social Science & Medicine 53 (2001) 10, pp. 1275-1285
A fundamental assumption of utility-based analyses is that patient utilities for health states can be measured on an equal-interval scale. This assumption, however, has not been widely examined. The objective of this study was to assess whether the rating scale (RS), standard gamble (SG), and...