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Activity Number:
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19
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Type:
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Contributed
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Date/Time:
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Sunday, August 11, 2002 : 2:00 PM to 3:50 PM
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Sponsor:
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General Methodology
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| Abstract - #301218 |
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Title:
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Inferring Response Times of A Latent, Error-Free Cognitive Process
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Author(s):
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Mark Glickman*+
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Affiliation(s):
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Boston University
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Address:
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111 Cummington St., Boston, Massachusetts, 02215, USA
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Keywords:
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Competing risks ; reaction times ; speed/accuracy tradeoff
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Abstract:
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Many experiments on human cognition involve having a subject make a judgment as quickly and accurately as possible. Both reaction times and error rates are widely-used indices of human performance in such experiments. A difficulty in relying on either one of these indices alone is the problem of a speed/accuracy tradeoff; subjects who react quickly are more likely to have higher error rates, whereas subjects who are more accurate are likely to have slower reaction times. Another difficulty arises when subjects respond slowly and inaccurately (rather than quickly but inaccurately), e.g., due to a lapse of attention. We introduce a latent competing processes approach that combines response time and accuracy information which addresses both situations. Likelihood analysis is discussed for the basic model and extensions. The method is applied to a data set from a fast-guess working memory experiment.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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