Global ETD Search
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Showing 1 to 4 of 4 for “"Tetrachoric"”.
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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 …
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The robustness of LISREL estimates in structural equation models with categorical data
… product-moment correlations and one containing tetrachoric, polyserial, and product-moment correlations as appropriate. Using continuous variables generated according to the equations defining the population model, three cases were considered by dichotomizing some of the variables with varying …
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Model-Based Measures of Interrater Agreement
… a monotone function of the Pearson (1900; 1913) tetrachoric correlation ρ between the latent effects of any two raters. A practical method for estimation and inference on κ<sub>M</sub> which bypasses computationally- intensive model fitting is defined and studied; this approach is …
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The Life Purpose Questionnaire: a Factor-Analytic Investigation
Meaning in life has been a popular topic of philosophy and study, and the perceived presence of meaning in one's life has been associated with many positive psychological variables (e.g., life satisfaction), while the perceived absence of meaning has been associated with negative variables (e.g., …