Package index • birt

All functions

algebra: Student Assessment Dataset
delta_param(): Extract the Mean Ability Estimate (delta)
discrim_params(): Extract Discrimination Estimates (a)
guessing_params(): Extract Guessing Parameter Estimates (c)
item_fit(): Item Fit Statistics (Outfit and Infit)
item_params(): Extract Item Difficulty Estimates (beta)
person_fit(): Person Fit Statistics
person_params(): Extract Student Ability Estimates (alpha + delta)
plot(<birt_fit>): Plot a Rasch Model Fit
plot_icc(): Plot Item Characteristic Curves (ICCs)
plot_info(): Test Information Function
plot_wright_map(): Wright Map (Item-Person Map)
ppc_rasch(): Posterior Predictive Check for Rasch Model
print(<birt_fit>): Print a Rasch Model Fit
rasch_fit(): Fit a Bayesian Rasch (1PL) IRT Model
rasch_simulate(): Simulate Data from a Rasch Model
summary(<birt_fit>): Summarize a Rasch Model Fit
threepl_fit(): Fit a 3PL IRT Model
twopl_fit(): Fit a 2PL IRT Model