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Numeracy moderates the influence of task-irrelevant affect on probability weighting.
Jakub Traczyk1, Kamil Fulawka1
1SWPS University of Social Sciences and Humanities, Faculty in Wroclaw, Ostrowskiego 30b, 53-238 Wroclaw, Poland.
Statistical numeracy impacts decision-making. Highly numerate individuals are less affected by negative emotions, maintaining linear probability weighting, unlike less numerate individuals exposed to fear-inducing stimuli.
Area of Science:
- Cognitive psychology
- Behavioral economics
- Decision science
Background:
- Statistical numeracy is crucial for effective decision-making.
- Previous research often focused on emotions directly related to risks.
- This study explores the impact of incidental affect on probability weighting.
Purpose of the Study:
- To investigate if statistical numeracy moderates the effect of incidental negative affect on probability weighting.
- To test the hypothesis that higher numeracy leads to less bias from irrelevant emotions.
Main Methods:
- Participants made insurance decisions after exposure to negative or neutral emotional stimuli.
- Probability weighting functions (PWF) were analyzed.
- Statistical numeracy was assessed.
Main Results:
- Incidental negative affect increased the curvature of the probability weighting function (PWF).
- This effect was significant only in less numerate individuals.
- Highly numerate individuals showed no change in probability weighting due to irrelevant affect.
Conclusions:
- Incidental negative affect biases probability weighting, particularly in less numerate individuals.
- Higher statistical numeracy may confer resilience against emotional biases in decision-making.
- Further research is needed to elucidate the mechanisms behind this effect.
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