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Related Experiment Video

Updated: Jan 23, 2026

Measuring Delay Discounting in Humans Using an Adjusting Amount Task

Measuring Delay Discounting in Humans Using an Adjusting Amount Task

Published on: January 9, 2016

Intelligence moderates the relationship between delay discounting rate and problematic alcohol use.

Allen J Bailey¹, Kyle Gerst¹, Peter R Finn¹

¹Department of Psychological and Brain Sciences.

Psychology of Addictive Behaviors : Journal of the Society of Psychologists in Addictive Behaviors

|June 21, 2019

Summary

Higher intelligence (IQ) amplifies the link between impulsive reward seeking and alcohol problems. This suggests that for individuals with high IQ, steep delay discounting is a significant risk factor for problematic alcohol use.

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Area of Science:

Neuroscience
Psychology
Behavioral Economics

Background:

Problematic alcohol use is linked to higher rates of delay discounting (valuing immediate rewards over future ones).
Lower executive function, including intelligence quotient (IQ), correlates with both high delay discounting and increased alcohol problems.
The moderating role of IQ in the relationship between delay discounting and alcohol misuse remains underexplored.

Purpose of the Study:

To investigate whether IQ moderates the association between delay discounting rates and measures of problematic alcohol use.
To clarify the interrelationships between alcohol use, delay discounting, and IQ in young adults.

Main Methods:

Assessed lifetime alcohol-related problems, recent alcohol consumption, IQ, and delay discounting in 617 young adults.
Employed statistical analyses to examine the moderating effect of IQ on the relationship between delay discounting and alcohol use metrics.

Main Results:

Higher delay discounting rates correlated with increased lifetime alcohol problems, recent alcohol use, and lower IQ.
IQ significantly moderated the association between delay discounting and both lifetime alcohol problems and recent high alcohol consumption.
The link between delay discounting and alcohol problems was stronger in individuals with higher IQ compared to those with lower IQ.

Conclusions:

Elevated delay discounting represents a significant risk factor for problematic alcohol use, particularly in individuals with higher IQ.
In individuals with lower IQ, the association between delay discounting and alcohol problems may be attenuated due to uniformly high discounting rates and prevalent alcohol misuse.