Measure Definition:
The 27-item Kirby questionnaire is most commonly used to measure delay discounting. This questionnaire is easy to administer, meets psychometric standards for reliability and stability, and has one-year test-retest correlations similar to tests designed to assess personality traits.
Construct:
Cognition
Construct Definition (and Source):
The mental process of knowing, thinking, learning and judging; the psychological result of perception and learning and reasoning. (NCI)
Selected References
| Citation | PubMed ID |
|---|---|
|
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(1), 78–87. https://doi.org/10.1037//0096-3445.128.1.78 |