An examinee faced with a test item will engage in solution behavior or rapid-guessing behavior. These qualitatively different test-taking behaviors bias parameter estimates for item response models that do not control for such behavior. A mixture Rasch model with item response time components was proposed and evaluated through application to real test data and a simulation study. The analysis of extant data indicated that a two-class solution fit better than a one-class solution and that 15% of examinees engaged in rapid-guessing behavior. Moreover, solution behavior examinees had substantially higher average ability scores than rapid-guessing examinees. Results of the simulation study indicated that the parameters were recovered well. © The Author(s) 2010.
CITATION STYLE
Meyer, J. P. (2010). A mixture rasch model with item response time components. Applied Psychological Measurement, 34(7), 521–538. https://doi.org/10.1177/0146621609355451
Mendeley helps you to discover research relevant for your work.