check_groups            Check group structure and cell sizes before
                        running DIF analysis
cross_details           Full crossing breakdown for a demographic
                        variable
export_results          Export iDIFr results to Excel
fit_2pl                 Fit a 2PL IRT model via marginal maximum
                        likelihood (EM)
group_details           Full per-group cell size breakdown
idifr                   Run intersectional DIF analysis
item_loglik             Compute per-item log-likelihood contributions
                        from a fitted irt_2pl model
item_loglik_mg          Per-item LL for a multigroup constrained model
merge_groups            Merge sparse groups
plot.idifr              Plot method for idifr objects
print.idifr             Print method for idifr objects
simulate_dif            Generate synthetic DIF data for testing and
                        simulation
summary.idifr           Summary method for idifr objects
tidy                    Tidy an idifr object
tidy.idifr              Return tidy data frame of DIF results
