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Decision making with the "adaptive toolbox": influence of environmental structure, intelligence, and working memory
1Department of Psychology, University of Bonn, Germany. broeder@uni-bonn.de
Summary
People adapt their decision-making strategies, like the "take the best" heuristic, to different environments. This adaptive strategy selection was observed in a simulated stock market, with intelligence moderating the shifts.
Area of Science:
- Cognitive Psychology
- Decision Science
- Behavioral Economics
Background:
- Individuals often employ simple decision-making strategies (heuristics) to navigate complex environments.
- Understanding the conditions under which people adapt their strategies is crucial for explaining human judgment and decision-making.
- Previous research suggests heuristics can be effective, but their adaptive use requires further investigation.
Purpose of the Study:
- To investigate the adaptive use of simple heuristics, specifically the 'take the best' heuristic, in varying decision environments.
- To examine whether participants adjust their strategies based on the payoff structures of simulated environments.
- To explore the moderating role of individual differences, such as intelligence, in adaptive strategy selection.
Main Methods:
- Two experiments were conducted with a total of 220 participants.
- A simulated stock market paradigm was used, where environmental payoff structures favored either compensatory or noncompensatory strategies.
- Participants' decision strategies were classified, and intelligence was assessed using standard tests.
Main Results:
- The majority of participants demonstrated adequate strategy selection for the given environment, supporting adaptive strategy use.
- Observed strategy shifts were significantly moderated by participants' intelligence levels.
- Neither an extended learning phase nor variations in working memory load or capacity influenced strategy selection beyond the effect of intelligence.
Conclusions:
- Individuals exhibit a notable capacity for adaptive strategy selection in decision-making, aligning their choices with environmental demands.
- Intelligence plays a key role in moderating the flexibility of strategy use.
- Factors like learning opportunities and working memory capacity did not provide additional benefits for adaptive strategy selection in this context.