coef_item               Parameter Estimates from Hierarchical IRT
                        Models.
hgrm                    Fitting Hierarchical Graded Response Models
                        (for Ordinal Responses)
hgrm2                   Hierarchical Graded Response Models with Known
                        Item Parameters
hltm                    Fitting Hierarchical Latent Trait Models (for
                        Binary Responses).
hltm2                   Hierarchical Latent Trait Models with Known
                        Item Parameters.
latent_scores           Estimates of Latent Preferences/Abilities
nes_econ2008            Public Attitudes on Economic Issues in ANES
                        2008
print.hIRT              Printing an object of class 'hIRT'
summary.hIRT            Summarizing Hierarchical Item Response Theory
                        Models
