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Regularized Variational Estimation for Exploratory Item Factor Analysis
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April E. Cho; Jiaying Xiao; Chun Wang; Gongjun Xu – Grantee Submission, 2022
Item factor analysis (IFA), also known as Multidimensional Item Response Theory (MIRT), is a general framework for specifying the functional relationship between a respondent's multiple latent traits and their response to assessment items. The key element in MIRT is the relationship between the items and the latent traits, so-called item factor…
Descriptors: Factor Analysis, Item Response Theory, Mathematics, Computation