$,Item-method           Get slots from an 'Item-class' object.
$,Itempool-method       Get slots of the an 'Itempool-class' object.
$,Response-method       Get slots of the an 'Response-class' object.
$,Response_set-method   Get slots of the a 'Response_set-class' object.
$,Testlet-method        Access slots of a 'Testlet-class' object
$.cat_output            Prints the raw output of cat_sim
$<-,Item-method         Set values to parameters or components of
                        'Item-class' object
$<-,Itempool-method     Set values to parameters or components of
                        'Itempool' class.
$<-,Response-method     Set values to components of 'Response' class
                        objects
$<-,Response_set-method
                        Set values to components of 'Response_set'
                        class objects
$<-,Testlet-method      Set values to parameters or components of
                        'Testlet-class' object
1PL-class               One-Parameter Logistic IRT model
2PL-class               Two-Parameter Logistic IRT model
3PL-class               Three-Parameter Logistic IRT model
4PL-class               Three-Parameter Logistic IRT model
GPCM-class              Generalized Partial Credit Model
GPCM2-class             Reparameterized Generalized Partial Credit
                        Model
GRM-class               Graded Response Model
Item-class              An S4 class to represent an Item
Itempool-class          An S4 class to represent an Itempool
M2PL-class              Multidimensional Two-Parameter Logistic Model
M3PL-class              Multidimensional Three-Parameter Logistic Model
PCM-class               Partial Credit Model
Rasch-class             Rasch model
Response-class          An S4 class representing responses of a single
                        examinee
Response_set-class      An S4 class representing responses of a set of
                        examinees
Testlet-class           An S4 class to represent a Testlet
add_misc                Add or change a named value to 'misc' slot of
                        an 'Item-class', 'Itempool-class' or
                        'Testlet-class' object.
area_between_icc        Calculate the area between two ICC curves
as.Itempool             Coerce a given object to 'Itempool-class'
                        object
as.data.frame.Item      Convert an 'Item-class' object into a
                        'data.frame'.
as.data.frame.Response
                        Convert a 'Response-class' object into a
                        'data.frame'.
as.data.frame.Response_set
                        Convert a 'Response_set-class' object into a
                        long format 'data.frame'
as.data.frame.cat_output
                        Convert a 'cat_output' object into a
                        'data.frame'.
as.list.Itempool        This function converts Itempool objects to a
                        list object
as.list.Response_set    This function converts Response_set objects to
                        a list object
as.matrix,Response_set-method
                        Convert a 'Response_set-class' object into a
                        'matrix'
biserial                Calculate biserial correlation
c,Item-method           Concatenate 'Item', 'Itempool' or 'Testlet'
                        objects and return an Itempool object.
c.cat_design            Concatenate 'cat_design' objects
calculate_exposure_rates
                        Calculate exposure rate of items for CAT
calculate_overlap_rates
                        Calculate overlap rate of items for CAT
cat_sim                 Computerized Adaptive Test (CAT) Simulation
cat_sim_fast            Computerized Adaptive Test (CAT) Simulation
                        (Parallel Computing)
classification_agreement_index
                        Calculate agreement index
classification_indices
                        Calculate classification accuracy and
                        consistency
create_cat_design       Computerized Adaptive Test (CAT) Simulation
                        Design
cusum_single            CUSUM based statistics for one examinee
dif                     Evaluate Differential Item Functioning (DIF) of
                        a test
distractor_analysis     Distractor Analysis Function
equate_stuirt           IRT Scale Transformation using STUIRT Program
est_ability             Estimate Examinee Ability
est_bilog               Item Calibration via BILOG-MG
est_flexmirt            Unidimensional Item Calibration via flexMIRT
est_irtpro              Item Calibration via IRTPRO
est_winsteps            Estimate Rasch Model using Winsteps
generate_ip             Generate a random 'Itempool' object
generate_item           Generate a random Item object
generate_resp           Generate random item responses (Response
                        object)
generate_resp_set       Generate a random item responses (Response_set
                        object)
generate_testlet        Generate a random Testlet object
get_cat_administered_items
                        Get administered items from a CAT output
get_cat_response_data   Extracts the response data of CAT output.
get_max_possible_total_score
                        Calculate the maximum score of a set of items
info                    Calculates the information of an "Item" object
ipd                     Item Parameter Drift
is.Item                 Check whether an object is an 'Item-class'
item                    Create an 'Item' object
item_analysis           Item Analysis Function
item_fit                Calculate item-fit indices
itempool                Create an 'Itempool' object
kappa_coef              Calculate Cohen's Kappa Coefficient
ks                      Item Characteristic Curve Estimation using
                        Kernel Smoothing
length,Itempool-method
                        Find the length of an 'Itempool-class' object
max_score               Calculate the maximum possible score
mean,Item-method        Calculate the expected value of an Item
mean,Itempool-method    Calculate the expected value of an Itempool
mean,Testlet-method     Calculate the expected value of an Testlet
person_fit              Calculate person-fit indices
plot.Item               Plot Item Characteristic Curve of an 'Item'
                        object
plot.Itempool           Plot Item Characteristic Curves or Test
                        Characteristic Curve of an 'Itempool' object
plot.cat_output         Plot progress of a CAT algorithm for one
                        examinee
plot.ks_output          Plot Item Fit using Kernel-Smoothing
plot_distractor_icc     Plot Empirical Item or Test characteristic
                        curve
plot_empirical_icc      Plot Empirical Item characteristic curve
plot_empirical_icc2     Plot Empirical Item Characteristic Curve
plot_info               Plot Item Information Function
plot_resp_loglik        Plot the Log-Likelihood of a response string
prob                    Calculate the probability of a correct response
prob_sum_score          Calculate summed-score probabilities
qip_index               Calculate Quality of Item Pool Index
resp_lik                Likelihood of a response string
resp_loglik             Log-likelihood of a Response String
response                Create a Response object from a vector of
                        responses
response_set            Create 'Response_set-class' object
rsss                    Convert raw score to scale score and vice versa
score_info              Calculate Score Information Function
sim_resp                Generate responses for a given model
summary.cat_output      Summarizes the raw output of cat_sim
testlet                 Creates a 'Testlet-class' object
var,Item-method         Calculate the variance of an Item
var,Itempool-method     Calculate the variances of items in an Itempool
var,Testlet-method      Calculate the variances of items in a Testlet
