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ERIC ED490201: An Application of Item Response Time: The Effort-Mod... |
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by ERIC |
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The validity of inferences based on achievement test |
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scores is dependent on the amount of effort that |
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examinees put forth while taking the test. With low- |
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stakes tests, for which this problem is particularly |
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prevalent, there is a consequent need for psychometric |
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models that can take into account different levels of |
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examinee effort. This article introduces the effort- |
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moderated IRT model, which incorporates item response |
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time into proficiency estimation and item parameter |
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estimation. In two studies of the effort-moderated model |
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when rapid guessing (i.e., reflecting low examinee |
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effort) was present, one based on real data and the other |
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on simulated data, the effort-moderated model performed |
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better than the standard 3PL model. Specifically, it was |
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found that the effort-moderated model (a) showed better |
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model fit, (b) yielded more accurate item parameter |
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estimates, (c) more accurately estimated test |
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information, and (d) yielded proficiency estimates with |
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higher convergent validity. (Contains 11 figures, 5 |
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tables, and 2 footnotes.) |
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Date Published: 2016-01-24 12:54:29 |
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Identifier: ERIC_ED490201 |
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Item Size: 15275906 |
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Language: english |
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Media Type: texts |
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# Topics |
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ERIC Archive; Item Response Theory; M... |
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# Collections |
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ericarchive |
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# Uploaded by |
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@chris85 |
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