The relative input of payoffs and probabilities into risk judgment

Abstract

The study was designed to investigate the relative input of payoffs and probabilities into risk judgment on the basis of the analysis of information search pattern.The modified version of MouselabWeb software (http://www.mouselabweb.org)was used as an investigative tool.The amount, the kind and the order of information accessed by subjects to evaluate risk was collected from ordinary respondents and respondents trained in mathematics and statistics.In the latter group were 75 students and young researchers working at National Aeronautics and Space Administration (NASA).The ordinary subjects were 67 Polish students of social sciences.As expected, the NASA group considered more information than ordinary students and searched for more information about probabilities.However, the ratio of information about payoffs to probabilities was close to 1 in both groups.Moreover, average risk rates were similar in both groups.It was also observed that risk rates were positively related with the amount of information about probabilities considered by subjects.

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