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Comparison of Rating Scale, Time Tradeoff, and Conjoint Analysis Methods for Assessment of Preferences in Prostate Cancer

Author

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  • Robert M. Kaplan

    (Clinical Excellence Research Center, Department of Medicine, Stanford University, Stanford, CA USA)

  • Catherine M. Crespi

    (Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA)

  • Ely Dahan

    (deceased)

  • Josemanuel D. Saucedo

    (Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA)

  • Casey Pagan

    (Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA)

  • Christopher S. Saigal

    (Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA)

Abstract

Background . Conjoint analysis is widely used in studies of consumer preference but has only recently been applied to measure patient utilities for health outcomes. We compared the reliability, feasibility, and internal and predictive validity of conjoint scaling methods against better established rating scale and time tradeoff methods for assessing prostate cancer utilities in men at risk for prostate cancer. Methods . In total, 194 men who were biopsy negative for prostate cancer were randomly assigned to complete 2 preference assessment modules, either conjoint analysis and a rating scale module or conjoint analysis and a time tradeoff module. Each participant’s most important attribute was identified and evaluated in relation to age group (age

Suggested Citation

  • Robert M. Kaplan & Catherine M. Crespi & Ely Dahan & Josemanuel D. Saucedo & Casey Pagan & Christopher S. Saigal, 2019. "Comparison of Rating Scale, Time Tradeoff, and Conjoint Analysis Methods for Assessment of Preferences in Prostate Cancer," Medical Decision Making, , vol. 39(7), pages 816-826, October.
    • Handle: RePEc:sae:medema:v:39:y:2019:i:7:p:816-826
    DOI: 10.1177/0272989X19873667
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    References listed on IDEAS

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