The effect of fluctuations of response criterion and sensitivity in a signal detection experiment |
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Authors: | W. A. Wagenaar |
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Affiliation: | (1) Institute for Perception TNO, Netherlands |
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Abstract: | Summary Two basic conditions for the application of methods provided by signal detection theory are that the subject's response criterion and sensitivity remain stable during a series of presentations. It is experimentally shown that these conditions are significantly violated. This results in an average underestimation of d', amounting to 8 to 10 % on the average, but with large individual differences. |
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