Research Papers Presented at Conferences

 

2009

Wollack, J. A., & Fish, M. (2009, May). What impact do high school mathematics curricula have on college-level mathematics placement? Presentation at the annual meeting of the Wisconsin Mathematics Council, Green Lake, WI.

Wollack, J. A., & Woo, V. (2009, April). Using Response Times to Improve Parameter Estimation for Speeded Test Items. Paper presented at the annual meeting of the National Council on Measurement in Education, San Diego, CA.

2008

Park, C. & Bolt, D. M. (2008, March). Multilevel IRT for Group-Level Diagnosis. Paper presented at the annual meeting of the American Educational Research Association, New York, NY.

Penfield, R. D., & de la Torre, J. (2008, March). A new response model for multiple-choice items. Paper presented at the annual meeting of the National Council on Measurement in Education, New York, NY.

2007

 

Park, C., Kang, T., & Wollack, J. A. (2007, April). Application of multilevel IRT to multiple-form linking when common items are drifted. Paper presented at the annual meeting of the National Council on Measurement in Education, Chicago, IL.

Park, C.. (2008, March).  Application of Multilevel IRT to Investigate Cross-National Skill Profiles on TIMSS 2003.  Paper presented at the annual meeting of the American Educational Research Association, New York, NY.

Wollack, J. A., Suh, Y., & Bolt, D. M. (2007, April). Using the Testlet Model to Mitigate Test Speededness Effects. Paper presented at the annual meeting of the National Council on Measurement in Education, Chicago, IL.

 

2006

Mroch, A. A. & Bolt, D. M. (2006, April). An IRT-based response likelihood approach for addressing test speededness. Paper presented at the annual meeting of the National Council on Measurement in Education, San Francisco, CA.

Suh, Y., Kang, T., Wollack, J. A., & Kim, S.-Y. (2006, April). A comparison of test scoring methods in the presence of test speededness. Paper presented at the annual meeting of the National Council on Measurement in Education, San Francisco, CA.

Sung, H. & Kang, T. (2006, April). Choosing a polytomous IRT model using Bayesian model selection methods. Paper presented at the annual meeting of the National Council on Measurement in Education, San Francisco, CA.

Wollack, J. A., Sung, H. J., & Kang, T. (2006, April). The impact of compounding item parameter drift on ability estimation. Paper presented at the annual meeting of the National Council on Measurement in Education, San Francisco, CA.

Wollack, J. A. & Suh, Y. (2006, April). Using the Testlet Model to Mitigate Test Speededness Effects. Paper presented at the annual meeting of the American Educational Research Association, San Francisco, CA.

Kim, J.-S. (2006, April). Using the distractor categories of multiple-choice items to improve IRT linking. Paper presented at the annual meeting of the National Council on Measurement in Education, San Francisco, CA.

 

2005

Goegebeur, Y., DeBoeck, P., Wollack, J. A., & Cohen, A. S. (2005, July). A model for gradual process change. Paper presented at the annual meeting of the International Psychometric Society, Tilburg, The Netherlands.

Mroch, A. A., Bolt, D. M., & Wollack, J. A. (2005, April). A new multi-class mixture Rasch model for test speededness. Paper presented at the annual meeting of the National Council on Measurement in Education, Montreal, Canada.

Kang, T., Cohen, A.S. & Sung, H.J.(April, 2005). IRT Model Selection Methods for Polytomous Items. Paper presented at the the National Council on Measurement in Education, Montreal, Canada.

Wells, C. S., Wollack, J. A., & Serlin, R. C. (2005, April). An equivalency test for model fit. Paper presented at the annual meeting of the National Council on Measurement in Education, Montreal, Canada.

Wollack, J. A., Sung, H. J., & Kang, T. (2005, April). Longitudinal Effects of Item Parameter Drift. Paper presented at the annual meeting of the National Council on Measurement in Education, Montreal, Canada.

2004

Kang, T., & Cohen, A. S. (2004, April). IRT model selection methods for dichotomous items. Presentation at the annual meeting of the National Council on Measurement in Education, San Diego, CA.

Lee, Y. -S., & Wollack, J. A. (2004, April). A comparison of model fit under parametric and nonparametric ICC estimation. Presentation at the annual meeting of the American Educational Research Association, San Diego, CA.

Wollack, J. A., & Cohen, A. S. (2004, April). A model for simulating speeded test data. Presentation at the annual meeting of the American Educational Research Association, San Diego, CA.

2003

Kang, T., & Cohen, A. S. (2003, April). A mixture analysis of ethnic group DIF. Paper presented at the annual meeting of the National Council on Measurement in Education, Chicago, IL.

Li, Y. & Cohen, A. S. (2003, April). Equating tests composed of testlets: A comparison of testlet response model and four polytomous response models. Paper presented at the annual meeting of the National Council on Measurement in Education, Chicago, IL.

Li, Y., Cohen, A. S., & Ibara, R. A. (2003, April). Characteristics of mathematics items associated with gender DIF. Paper presented at the annual meeting of the American Educational Research Association, Chicago, IL.

Wollack, J. A., Wells, C. S., & Cohen, A. S. (2003, April). A comparison of item- and testlet-level scoring on scale stability in the presence of test speededness. Paper presented at the annual meeting of the American Educational Research Association, Chicago, IL.

2002

Cohen, A. S., Wollack, J. A., & Mroch, A. A. (2002, April). A Mixture Rasch Model Analysis of Test Speededness. Paper presented at the annual meeting of the American Educational Research Association, New Orleans, LA.

Wells, C. & Bolt, D. (2002, June). Simultaneous estimation of parametric and nonparametric IRT models. Paper presented at the annual meeting of the Psychometric Society, Chapel Hill, NC.

Wollack, J. A. (2002, April). Comparison of Answer Copying Indices on Real Data. Paper presented at the annual meeting of the American Educational Research Association, New Orleans, LA.

Wollack, J. A., Cohen, A. S., & Wells, C. S. (2002, April). The Effects of Test Speededness on Score Scale Stability. Paper presented at the annual meeting of the American Educational Research Association, New Orleans, LA.

2001

Bolt, D. M., Cohen, A. S., & Wollack, J. A. (2001, April). A mixture item response model for multiple-choice data. Paper presented at the annual meeting of the American Educational Research Association, Seattle, WA.

 

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