Inquisit Scripts

Delay Discounting (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.


(Requires Inquisit Lab to run locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

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 locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

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 locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

Delay Discounting Task with Money and Food

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 Epstein et al (2010).


(Requires Inquisit Lab to run locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

Delay Discounting Task with Money and Food - French

The French translation of a 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 Epstein et al (2010).


(Requires Inquisit Lab to run locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

Delay Discounting Task with Money and Food - Spanish

The Spanish translation of a 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 Epstein et al (2010).


(Requires Inquisit Lab to run locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

Experiential Discounting Task

Then Experiential Delay Discounting Task used by Reynolds & Schiffbauer (2004) to measure value assigned by a participant to experienced delays.


(Requires Inquisit Lab to run locally)
Run Test Online User Manual Sample Data Last Updated: Oct 27, 2016, 5:51PM

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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