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Dodd, B. G., Koch, W. R., & de Ayala, R. J.. (1993). Computerized adaptive testing using the partial credit model: Effects of item pool characteristics and different stopping rules. Educational and Psychological Measurement, 53, 61-77.

De Ayala, R. J., Dodd, B. G., & Koch, W. R.. (1992). A comparison of the partial credit and graded response models in computerized adaptive testing. Applied Measurement in Education, 5, 17-34.

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de Ayala, R. J., Dodd, B. G., & Koch, W. R.. (1990). A simulation and comparison of flexilevel and Bayesian computerized adaptive testing. Journal of Educational Measurement, 27, 227-239.

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