Mehrez, Abraham; Gafni, Amiram - In: Social Science & Medicine 31 (1990) 11, pp. 1281-1283
A commonly used method of measuring cardinal preferences for the purpose of evaluating health related quality of life is the time trade-off (TTO) technique. The TTO technique, although offered as a substitute to the standard gamble (SG) technique, is not related in a general way to any existing...