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Showing 1 to 1 of 1 for “"tetrachoric correlations"”.
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A comparison of traditional and IRT factor analysis.
… researched were a traditional factor analysis of tetrachoric correlation coefficients and an IRT approach to factor analysis which utilizes marginal maximum likelihood estimation using an EM algorithm (MMLE-EM). Dichotomous item response data was generated under the 2-parameter normal ogive model …