ACBC is not applicable to all design problems. Although it is not possible to conduct paper and pencil versions, ACBC surveys can be administered using Computer-Administered Personal Interview programs or computers with wireless internet access. Finally, ACBC does not currently permit alternative-specific designs, where some attributes or attribute levels are appropriate for some concept alternatives but not others e.
The limitations of the available evidence also merit consideration.
For example, it is difficult to determine whether the improved prediction observed in some ACBC studies results from the additional time that informants spend completing ACBC surveys; the greater attention that informants appear to devote to the decision-making process; the convergence of methods achieved by including BYO, a Screening section, and Choice Tournaments; the increase in data that ACBC surveys yield; or the fact that choice sets including attributes with similar utilities utility balance are more efficient.
With the exception of the study reported by Chapman et al. Although reports describing the application of ACBC to marketing problems were generally favorable, there is a need to examine the utility of these methods in health service settings. Estimating the value of treatments or outcomes that may be more abstract and less familiar than the products and services encountered in marketing applications may pose difficulties for these methods. Finally, many of the studies cited in this article were conducted by researchers affiliated with Sawtooth Software.
Meta-analytic reviews suggest that industry-sponsored randomized trials yield systematically larger effect sizes than those conducted with independent funding. The ACBC software suite was designed to create a more relevant and engaging experience, enhance the quality of the data collected in choice-based CA surveys, improve utility estimation, and increase the validity of real-world predictions. Preliminary evidence from marketing research applications suggests that ACBC represents a useful approach to the involvement of users in a more patient-centered health service delivery process.
Bryan Orme provided thoughtful comments during the preparation of this manuscript. Investigators sometimes present one or more hold-out choice tasks to all participants. Hold-out tasks are not included in the design of the experiment or the estimation of utilities. Although preferences for the levels of some attributes might have a natural order e. Some statistical packages, therefore, allow analysts to impose constraints that require utilities to increase or decrease monotonically. National Center for Biotechnology Information , U.
Adaptive Choice-Based Conjoint Analysis | SpringerLink
Published online Aug Charles E. Cunningham , Ken Deal , and Yvonne Chen. Author information Copyright and License information Disclaimer. Cunningham, Email: ac. Corresponding author. This article has been cited by other articles in PMC. Abstract Conjoint analysis CA has emerged as an important approach to the assessment of health service preferences.
Limitations of Conjoint Analysis CA Despite the strengths of CA, several findings have encouraged the development of new approaches to the collection of preference data. Open in a separate window. Review In preparation for this review, we CEC and KD participated in a 2-day ACBC beta testing workshop, obtained beta versions of the ACBC software, completed an ACBC study of the prevention program design preferences of university undergraduates, and programmed a second study examining factors influencing the decision of university students to obtain an H1N1 influenza vaccination.
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Discussion The ACBC software suite was designed to simulate the two-stage decision-making processes that influence many real-world choices. Conclusions The ACBC software suite was designed to create a more relevant and engaging experience, enhance the quality of the data collected in choice-based CA surveys, improve utility estimation, and increase the validity of real-world predictions. References 1. Wait S, Nolte E. Public involvement policies in health: exploring their conceptual basis. Health Econ Policy Law. Lomas J.
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What is a Conjoint Analysis? Conjoint Types & When to Use Them
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4. Choice Based Conjoint Studies: Design and Analysis
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