Inquisit Test Variants

Delay and Probability Discounting Procedure (random adjustment)

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.


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User Manual Sample Data Last Updated: Sep 12, 2017, 5:33PM

Delay and Probability Discounting Procedure (random adjustment) - Spanish

Spanish version of 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.


(Requires Inquisit Lab to run on your computer)
Run Test Online
(See how the test runs with Inquisit Web)
User Manual Sample Data Last Updated: Sep 12, 2017, 5:33PM

Delay Discounting Task (short term)

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.


(Requires Inquisit Lab to run on your computer)
Run Test Online
(See how the test runs with Inquisit Web)
User Manual Sample Data Last Updated: Sep 12, 2017, 5:33PM

Delay Discounting Task (short term) - Spanish

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.


(Requires Inquisit Lab to run on your computer)
Run Test Online
(See how the test runs with Inquisit Web)
User Manual Sample Data Last Updated: Sep 12, 2017, 5:33PM

References

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.

Epstein, L. H., Salvy, S. J., Carr, K. A., Dearing, K. K., & Bickel, W. K. (July 01, 2010). Food reinforcement, delay discounting and obesity. Physiology & Behavior, 100, 5, 438-445.

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