“…Nevertheless, rating scales are still the most widely used method for generating utility weights (Garber, Weinstein, Torrance, & Kamlet, 1996). In arriving at a consensus on this issue, the International Panel on Cost-Effectiveness in Health and Medicine, convened by the U.S. Public Health Service in 1993, concluded that the "choice of preference measurement method should be based on the decision or problem to be solved, the practical considerations involved in the study, and the use to which data will be put."…”