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Numerical differentiation method for computing error covariance matrices in item response theory modeling : An evaluation and a new proposal

TIAN, Wei

Numerical differentiation method for computing error covariance matrices in item response theory modeling : An evaluation and a new proposal TIAN, Wei , Li Cai, David Thissen, Tao Xin - Los Angeles Sage 2013 - Vol.73 No. 3 (pp.412-439) - Educational and Psychological Measurement .

ISSN: 00131644

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