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Too Many Choices Can Spoil The Research

Date:
June 27, 2008
Source:
University of Chicago Press Journals
Summary:
The more choices people get, the less consistent they are in making those choices, according to a new study. The study's findings may affect the way researchers examine consumer choices.

The more choices people get, the less consistent they are in making those choices, according to a new study in the Journal of Consumer Research. The study’s findings may affect the way researchers examine consumer choices.

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Authors Jordan J. Louviere (University of Technology, Sydney), Towhidul Islam (University of Guelph, Ontario), Nada Wasi, Deborah Street, and Leonie Burgess (all University of Technology, Sydney) examined choice experiments, where researchers study which brands or products consumers prefer. The research found that experiments that are considered “statistically efficient” (asking complex questions of fewer respondents) lead to less consistency in participants’ choices.

“The likely price a researcher pays in using optimal designs is less consistent choices,” write the authors.

The authors constructed experiments where participants had to choose among a number of options for ordering pizza or choosing vacations. They designed 22 different questionnaires with varied amounts of attributes. They found that the more efficient the study design was, the less consistent participants were with their choices.

The most efficient designs use many different attributes (such as delivery time and quality of ingredients for pizza). The authors believe that highly efficient study designs impose a higher cognitive load on the participants (requiring more thought for each response). That’s why their responses decrease in consistency.

“Our results suggest that researchers should pay attention to the ways that they design or administer experiments because these decisions can impact choice outcomes and choice variability,” write the authors.


Story Source:

The above story is based on materials provided by University of Chicago Press Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Louviere et al. Designing Discrete Choice Experiments: Do Optimal Designs Come at a Price? Journal of Consumer Research, 2008; 0 (0): 080317133716999 DOI: 10.1086/586913

Cite This Page:

University of Chicago Press Journals. "Too Many Choices Can Spoil The Research." ScienceDaily. ScienceDaily, 27 June 2008. <www.sciencedaily.com/releases/2008/06/080625193854.htm>.
University of Chicago Press Journals. (2008, June 27). Too Many Choices Can Spoil The Research. ScienceDaily. Retrieved November 29, 2014 from www.sciencedaily.com/releases/2008/06/080625193854.htm
University of Chicago Press Journals. "Too Many Choices Can Spoil The Research." ScienceDaily. www.sciencedaily.com/releases/2008/06/080625193854.htm (accessed November 29, 2014).

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