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Further analysis of delay discounting: Sequential effects on participant answers using the 27-item Monetary Choice Questionnaire

Systematic manipulations of the order in which questions are presented in hypothetical discounting tasks have shown that individual responses vary as a result of these manipulations. For example, Robles and Vargas (2007, 2008) and Robles, Vargas, and Bejarano (2009) demonstrated that individual discounting rates systematically change if questions are presented in a random, ascending, or descending order. The purpose of this study was to examine if specific sequential manipulations affected individual k values when using the Kirby, Petry, and Bickel (1999) 27-item Monetary Choice Questionnaire (MCQ). In a single session, participants (undergraduate students, N = 80), answered two MCQs. One of the MCQs was the standard Kirby et al. (1999) MCQ and the other was the MCQ with the question sequence altered systematically. Within-subject results suggest that individual k values are consistent when comparing k values from the two MCQs completed by each individual. In most cases, individual k values between MCQs did not vary substantially. Additionally, there was a statistically significant correlation between both MCQ administrations for each group. Results from this study indicate that k values obtained using the MCQ are reliable when question sequence is altered.

Identiferoai:union.ndltd.org:pacific.edu/oai:scholarlycommons.pacific.edu:uop_etds-1282
Date01 January 2016
CreatorsSchenk, Merritt J.
PublisherScholarly Commons
Source SetsUniversity of the Pacific
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceUniversity of the Pacific Theses and Dissertations
Rightshttp://creativecommons.org/licenses/by-nc-nd/4.0/

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