Goodness of Fit for Rasch Models
Factor Scores - Ability Estimates
Descriptive Statistics
Graded Response Model - Polytomous IRT
Fitted Values for IRT model
Latent Trait Model - Latent Variable Model for Binary Data
Fit of the model on the margins
The Law School Admission Test (LSAT), Section VI
Residuals for IRT models
Generalized Partial Credit Model - Polytomous IRT
Pairwise Associations between Items using a Correlation Coefficient
Attitude to the Environment
Attitude Towards Abortion
Area under the Test or Item Information Curves
Gauss-Hermite Quadrature Points
vcov method for fitted IRT models
Unidimensionality Check using Modified Parallel Analysis
Factor Scores - Ability Estimates Plot method
Workplace Industrial Relation Survey Data
Generate Random Responses Patterns under Dichotomous and Polytomous IRT models
Person-Fit Statistics and P-values
Multiple Choice Items to Binary Responses
Rasch Model
Anova method for fitted IRT models
Item-Fit Statistics and P-values
Summary method for fitted IRT models
Plot method for fitted IRT models
Latent Trait Models for Item Response Theory Analyses
Descriptive Statistics Plot method
Prepares Data for Test Equating
Birnbaum's Three Parameter Model
Extract Estimated Loadings
Point-Biserial Correlation
Women's Mobility
Attitude to Science and Technology
Cronbach's alpha