Effects of Response Uncertainty and Degree of Knowledge on Subjective Uncertainty

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Abstract
The experiment was designed to examine the effects on subjective uncertainty of variations in response uncertainty and amount of information and to explore the relationship between two indices of subjective uncertainty, confidence in decision and decision time. 18 Ss were exposed to a 4-factor repeated measures design involving 6 levels of response uncertainty, 2 levels of ‘unknown information’, 2 levels of ‘known information’, and 2 orders of problem presentation. Confidence in decision was significantly affected by response uncertainty, ‘unknown information’, ‘known information’, and the interaction of the 2 information conditions. Decision time was significantly affected by response uncertainty and ‘known information.’

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