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Effects of random outcomes on choice behavior
1Department of Psychology, Long Island University, Brooklyn, NY 11201, USA. kudadjie@liu.edu
Perceptual and Motor Skills
|August 5, 2004
Summary
Humans often misperceive random events as linked. This study found that providing information about choice-outcome relationships did not improve the detection of random event contingencies compared to direct experience.
Area of Science:
- Cognitive Psychology
- Decision Science
Background:
- Optimal decision-making relies on detecting task-salient information.
- Humans exhibit a bias to perceive contingency in random events.
Purpose of the Study:
- To investigate conditions under which random events are correctly perceived.
- To compare the effects of explicit information versus direct experience on contingency detection.
Main Methods:
- Two groups (n=40 each) were studied.
- One group received explicit information on choice-outcome relationships; the other experienced the underlying contingencies directly.
Main Results:
- Explicit information provision did not enhance the detection of relationships between random events.
- Direct experiential contact with contingencies was as effective as, but no more effective than, information provision.
Conclusions:
- Sensitivity to underlying contingencies is key for accurate perception of random events.
- Both direct experience and explicit information may be insufficient if sensitivity is low.