Joint Modeling of Ability and Differential Speed Using Responses and Response Times |
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Authors: | Jean-Paul Fox Sukaesi Marianti |
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Institution: | 1. Department of Research Methodology, Measurement and Data Analysis, University of Twente;2. Department of Psychology, University of Brawijaya |
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Abstract: | With computerized testing, it is possible to record both the responses of test takers to test questions (i.e., items) and the amount of time spent by a test taker in responding to each question. Various models have been proposed that take into account both test-taker ability and working speed, with the many models assuming a constant working speed throughout the test. The constant working speed assumption may be inappropriate for various reasons. For example, a test taker may need to adjust the pace due to time mismanagement, or a test taker who started out working too fast may reduce the working speed to improve accuracy. A model is proposed here that allows for variable working speed. An illustration of the model using the Amsterdam Chess Test data is provided. |
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Keywords: | Joint model latent growth model response times variable speed |
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