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Inquisit Task Library >
Resources and information for administering the Delay Discounting Task with Inquisit.
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Delay Discount (random adjustment)
This script runs the Delay Discounting Task developed by Richards, Zhang, Mitchell, and De Wit (1999). The procedure uses a random adjustment algorithm to produce discount estimates (i.e., indifference points) for 10 different delays.
Last Updated: Feb 6, 2012, 2:39PM
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Delay Discount Task (short term)
This script runs the Delay Discounting Task developed by Cherek, Moeller, Dougherty, and Rhoades (1997). The task provides a measure of impulsivity by evaluating discount rates for rewards delayed by 10 seconds.
Last Updated: Feb 2, 2012, 12:45PM
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Delay Discount Task
This script runs the Delay Discounting Task involving money and food. The task modeled off of the task used by Odum, Baumann, and Rimington (2006) and in developmenet by Leonard Epstein et al (in press).
Last Updated: Nov 1, 2010, 8:35AM
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Cherek, D. R., Moeller, F. G, Dougherty, D. M., Rhoades, H. (1997). Studies of Violent and Nonviolent Male Parolees: II. Laboratory and Psychometric Measurements of Impulsivity. Biological Psychiatry, 41, 523-529. Richards, J. B., Zhang, L., Mitchell, S. H., De Wit, H. (1999). Delay or probability discounting in a model of impulsive behavior: Effect of alcohol. Journal of the Experimental Analysis of Behavior, 71, 121-143. Madden, G. J., Bickel, W. K., Jacobs, E. A. (1999). Discounting of Delayed Rewards in Opioid-Dependent Outpatients: Exponential or Hyperbolic Discounting Functions? Experimental and Clinical Psychopharmacology, 7, 284-293. Moeller, F. G., Dougherty, D. M, Barratt, E. S., Oderinde, V, Mathias, C. W., Harper, R. A., Swann, A. C. (2002). Increased impulsivity in cocaine dependent subjects independent of antisocial personality disorder and aggression, Drug and Alcohol Dependence, 68, 105-111. Odum, A.L., Baumann, A.A.L., Rimington, D.D. (2006). Discounting of delayed hypothetical money and food: Effects of amount. Behavioural Processes, 73, 278-284. Robles, E., Vargas, P. A., Bejarano, R. (2009). Within-subject differences in degree of delay discounting as a function of order of presentation of hypothetical cash rewards. Behavioral Processes, 81, 260-263.
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