MCQSCORE: Stata module to score the Monetary Choice Questionnaire using logistic regression

E. Paul Wileyto ()
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E. Paul Wileyto: Tobacco Use Research Center, School of Medicine, U. of Pennsylvania

Statistical Software Components from Boston College Department of Economics

Abstract: MCQScore scores the Monetary Choice Questionnaire (questions in standard order), which uses a hyperbolic decay function to summarize the degree to which time discounts the value of a delayed reward. The scale parameter k is used as a measure of impulsivity. Conventional scoring requires a lot of hand labor, identifying indifference points where a subject's behavior changes from preferring an immediate to a delayed reward. Instead, we use logistic regression to identify a contour where the probability of choosing either reward is 0.5, identifying in turn the corresponding hyperbolic function. Logistic regression is applied to raw binary choices from the survey, modeling the probability of choosing the delayed reward in response to time and a transformation of the reward ratio. The estimate of k is obtained as a ratio of the two betas. Output will include log-k estimates for small, medium, and large delayed reward sizes, a pooled log-k estimate and the component betas, and optionally, a jackknife estimate of standard error for the pooled log-k estimate and a bias-reduced estimate.

Language: Stata
Requires: Stata version 8.0
Keywords: logistic regression; choice; utility (search for similar items in EconPapers)
Date: 2004-04-15
Note: This module may be installed from within Stata 8 by typing "ssc install mcqscore". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/m/mcqscore.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/mcqscore.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/m/mcq_lik.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/mcq2long.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/m/mcq_instrument.pdf sample questionnaire (application/pdf)
http://fmwww.bc.edu/repec/bocode/m/mcqscore.pdf documentation (application/pdf)
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