The TTO method and procedural invariance
In a pilot study we investigate whether the inferences we draw about people's preferences towards health care treatments are altered if we vary the procedure that is used to elicit these preferences. In a conventional time trade-off (TTO) question, respondents express their preferences towards treatment by comparing a period of ill-health with a shorter period in a higher quality of life. In our less conventional TTO question, we vary the procedure by asking respondents their preferences towards treatment by comparing a period of ill-health with a longer period in a lower quality of life. The quantitative data are equivocal about whether preferences for treatment differ between the conventional and unconventional questions. The qualitative data support the notion of contrasting issues in the questions that involve prolonging time in a lower quality of life and appear to account for a failure to find quantitative differences in all of the questions. Copyright © 2002 John Wiley & Sons, Ltd.
Volume (Year): 12 (2003)
Issue (Month): 8 ()
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- Tversky, Amos & Kahneman, Daniel, 1992. " Advances in Prospect Theory: Cumulative Representation of Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 5(4), pages 297-323, October.
- Dolan, Paul & Cookson, Richard, 2000. "A qualitative study of the extent to which health gain matters when choosing between groups of patients," Health Policy, Elsevier, vol. 51(1), pages 19-30, February.
- Dolan, Paul, 1996. "Modelling valuations for health states: the effect of duration," Health Policy, Elsevier, vol. 38(3), pages 189-203, December.
- A Diener & B O'Brien & A Gafni, 1997.
"Health Care Contingent Valuation Studies: A review and classification of the literature,"
Centre for Health Economics and Policy Analysis Working Paper Series
1997-07, Centre for Health Economics and Policy Analysis (CHEPA), McMaster University, Hamilton, Canada.
- Alan Diener & Bernie O'Brien & Amiram Gafni, 1998. "Health care contingent valuation studies: a review and classification of the literature," Health Economics, John Wiley & Sons, Ltd., vol. 7(4), pages 313-326.
- Peter Wakker & Daniel Deneffe, 1996. "Eliciting von Neumann-Morgenstern Utilities When Probabilities Are Distorted or Unknown," Management Science, INFORMS, vol. 42(8), pages 1131-1150, August.
- Han Bleichrodt, 2002. "A new explanation for the difference between time trade-off utilities and standard gamble utilities," Health Economics, John Wiley & Sons, Ltd., vol. 11(5), pages 447-456.
- Dolan, Paul & Jones-Lee, Michael, 1997. "The time trade-off: A note on the effect of lifetime reallocation of consumption and discounting," Journal of Health Economics, Elsevier, vol. 16(6), pages 731-739, December.
- Paul Dolan & Colin Green, 1998. "Using the person trade-off approach to examine differences between individual and social values," Health Economics, John Wiley & Sons, Ltd., vol. 7(4), pages 307-312.
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