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Examining performance of the MH-RM algorithm with the 3PL multilevel MIRT model.

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Bashkov BM. — American Board of Internal Medicine

DeMars C. — James Madison University

Presented: National Council on Measurement in Education Annual Meeting, April 2016

Abstract: This study examined the performance of the Metropolis-Hastings Robbins-Monro (MH-RM) algorithm (Cai, 2010b) in estimating 3PL multilevel multidimensional IRT (ML-MIRT) models. Item and person parameter recovery as well as variances and covariances at different levels were investigated in different combinations of number of dimensions, intraclass correlation levels, and sample sizes.

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