Journal
PSYCHOLOGICAL ASSESSMENT
Volume 27, Issue 3, Pages 777-785Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0038622
Keywords
Iowa Gambling Task; Balloon Analogue Risk Task; Columbia Card Task; risky decision making
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Researchers and clinicians frequently use behavioral measures to assess decision making. The most common task that is marketed to clinicians is the Iowa Gambling Task (IGT), thought to assess risky decision making. How does performance on the IGT relate to performance on other common measures of decision making? The present study sought to examine relationships between the IGT, the Balloon Analogue Risk Task (BART), and the Columbia Card Task (CCT). Participants were 390 undergraduate students who completed the IGT, BART, and either the hot or cold CCT. Principal components factor analysis on the IGT, BART, and CCT-cold (n = 112) indicated that the IGT measures a different component of decision making than the BART, and the CCT-cold weakly correlated with early IGT trials. Results of the exploratory factor analysis on the IGT, BART, and CCT-hot (n = 108) revealed a similar picture: the IGT and BART assessed different types of decision making, and the BART and CCT-hot were weakly correlated. A confirmatory factor analysis (n = 170) indicated that a 3-factor model without the CCT-cold (Factor 1: later IGT trials; Factor 2: BART; and Factor 3: early IGT trials) was a better fitting model than one that included the CCT-cold and early IGT trials on the same factor. Collectively, the present results suggest that the IGT, BART, and CCT all measure unique, nonoverlapping decision making processes. Further research is needed to more fully understand the neuropsychological construct of decision making.
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