Item parameter estimation of a two-dimensional generalized Mirt model
Hsu, Yaowen
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Permalink
https://hdl.handle.net/2142/23143
Description
Title
Item parameter estimation of a two-dimensional generalized Mirt model
Author(s)
Hsu, Yaowen
Issue Date
1995
Doctoral Committee Chair(s)
Ackerman, Terry A.
Department of Study
Education
Discipline
Education
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Education, Tests and Measurements
Statistics
Language
eng
Abstract
Ackerman and Spray's two-dimensional generalized model considers the degree of compensation between two abilities. Their model contains the multidimensional 2PL compensatory model and the Sympson partial compensatory model as special cases. In this study, an MMLE/EM approach (the Bock and Aitkin method) was used to develop an estimation procedure for the generalized model, and the precision of this procedure was evaluated using both simulated and real data. Computational difficulties and limitations were discussed.
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