Abstract
Several measures of delay discounting have been shown to be reliable over periods of up to 3 months. In the present study, 115 participants completed a fill-in-the-blank (FITB) delay-discounting task on sets of 5 different commodities, 12 weeks apart. Results showed that discounting rates were not well described by a hyperbolic function but were significantly correlated across the 12 weeks for all 10 commodities. Discounting, when measured by area under the curve, was significantly correlated across the 12 weeks for 9 of the 10 commodities. Absolute values of both measures of discounting sometimes differed across the two administrations of the task. These results support the reliability of the FITB method but raise a number of issues to consider when choosing a method to study delay discounting.
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BAKER, F., JOHNSON, M. W., & BICKEL, W. K. (2003). Delay discounting in current and never-before cigarette smokers: Similarities and differences across commodity, sign, and magnitude. Journal of Abnormal Psychology, 112, 382–392.
BECK, R. C., & TRIPLETT, M. F. (2009). Test-retest reliability of a group-administered paper-pencil measure of delay discounting. Experimental and Clinical Psychopharmacology, 17, 345–355.
CHAPMAN, G. B. (1996). Temporal discounting and utility for health and money. Journal of Experimental Psychology, 22, 771–791.
DIXON, M. R., MARLEY, J., & JACOBS, E. A. (2003). Delay discounting by pathological gamblers. Journal of Applied Behavior Analysis, 36, 449–458.
HARDISTY, D. J., & WEBER, E. U. (2009). Discounting future green: Money versus the environment. Journal of Experimental Psychology: General, 138, 329–340.
JOHNSON, M. W., BICKEL, W. K., & BAKER, F. (2007). Moderate drug use and delay discounting: A comparison of heavy, light, and never smokers. Experimental and Clinical Psychopharamacology, 15, 187–194.
KIRBY, K. N., PETRY, N. M., & BICKEL, W. K. (1999). Heroin addicts have higher discount rates for delayed rewards than non-drug-using controls. Journal of Experimental Psychology: General, 128, 78–87.
MAZUR, J. E. (1987). An adjusting procedure for studying delayed reinforcement. In M. L. Commons, J. E. Mazur, J. A. Nevin, & H. Rachlin (Eds.), Quantitative analyses of behavior: Vol. 5. The effect of delay and intervening events on reinforcement value (pp. 55–73). Hillsdale, NJ: Erlbaum.
MYERSON, J., GREEN, L., & WARUSAWITHARANA, M. (2001). Area under the curve as a measure of discounting. Journal of the Experimental Analysis of Behavior, 76, 235–243.
OHMURA, Y., TAKAHASHI, T., KITAMURA, N., & WEHR, P. (2006). Three month stability of delayed and probability discounting measures. Experimental and Clinical Psychopharmacology, 14, 318–328.
PETRY, N. M. (2005). Pathological gambling: Etiology, comorbidity, and treatment. Washington, DC: American Psychological Association.
RACHLIN, H., RAINERI, A., & CROSS, D. (1991). Subjective probabilities and delay. Journal of the Experimental Analysis of Behavior, 55, 233–244.
RICHARDS, J. B., MITCHELL, S. H., DE WIT, H., & SEIDEN, L. S. (1997). Determination of discount functions with an adjusting amount procedure in rats. Journal of the Experimental Analysis of Behavior, 71, 121–143.
SIMPSON, C. A., & VUCHINICH, R. E. (2000). Reliability of a measure of temporal discounting. The Psychological Record, 50, 3–16.
SMITH, C. L., & HANTULA, D. A. (2008). Methodological considerations in the study of delay discounting in intertemporal choice: A comparison of tasks and modes. Behavior Research Methods, 40, 940–953.
TAKAHASHI, M., MASATAKA, N., MALAIVIJITNOND, S., & WONGSIRI, S. (2008). Future rice is discounted less steeply than future money in Thailand. The Psychological Record, 58, 175–190.
WEATHERLY, J. N., DERENNE, A., & CHASE, S. (2008). Do the risk factors for pathological gambling predict temporal discounting? Analysis of Gambling Behavior, 2, 25–34.
WEATHERLY, J. N., DERENNE, A., & TERELL, H. K. (2010). College students discount money “won” more than money “owed.” The Psychological Record, 60, 463–472.
WEATHERLY, J. N., TERRELL, H. K., & DERENNE, A. (2010). Delay discounting of different commodities. Journal of General Psychology, 137, 273–286.
WHELAN, R., & MCHUGH, L. A. (2009). Temporal discounting of hypothetical monetary rewards by adolescents, adults, and older adults. The Psychological Record, 59, 247–258.
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Weatherly, J.N., Derenne, A. & Terrell, H.K. Testing the Reliability of Delay Discounting of Ten Commodities Using the Fill-in-the-Blank Method. Psychol Rec 61, 113–126 (2011). https://doi.org/10.1007/BF03395749
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DOI: https://doi.org/10.1007/BF03395749