A B C D E G I K L M P R S T V misc
| add_misc | Add or change a named value to 'misc' slot of an 'Item-class', 'Itempool-class' or 'Testlet-class' object. |
| add_misc-method | Add or change a named value to 'misc' slot of an 'Item-class', 'Itempool-class' or 'Testlet-class' object. |
| as.data.frame.GPCM | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.GPCM2 | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.GRM | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.Item | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.Itempool | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.M2PL | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.M3PL | Convert an 'Item-class' object into a 'data.frame'. |
| as.data.frame.PCM | 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.Testlet | Convert an 'Item-class' object into a 'data.frame'. |
| as.Itempool | Coerce a given object to 'Itempool-class' object |
| 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-method | Convert a 'Response_set-class' object into a 'matrix' |
| biserial | Calculate biserial correlation |
| c-method | Concatenate 'Item', 'Itempool' or 'Testlet' objects and return an Itempool object. |
| 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) |
| create_cat_design | Computerized Adaptive Test (CAT) Simulation Design |
| dif | Evaluate Differential Item Functioning (DIF) of a test |
| distractor_analysis | Distractor Analysis Function |
| est_ability | Estimate Ability of Examinees |
| est_bilog | Run BILOG-MG in batch mode |
| 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 |
| GPCM-class | Generalized Partial Credit Model |
| GPCM2-class | Reparametrized Generalized Partial Credit Model |
| GRM-class | Graded Response Model |
| info | Calculates the information of an "Item" object |
| info-method | Calculates the information of an "Item" object |
| ipd | Item Parameter Drift |
| irt | A Collection of Item Response Theory (IRT) and Computerized Adaptive Testing (CAT) Functions |
| is.Item | Check whether an object is an 'Item-class' |
| is.Itempool | Check whether an object is an 'Item-class' |
| is.Testlet | Check whether an object is an 'Item-class' |
| item | Create an 'Item' object |
| Item-class | An S4 class to represent an Item |
| itempool | Create an 'Itempool' object |
| Itempool-class | An S4 class to represent an Itempool |
| item_analysis | Item Analysis Function |
| item_fit | Calculate item-fit indices |
| ks | Item Characteristic Curve Estimation using Kernel Smoothing |
| length-method | Find the length of an 'Itempool-class' object |
| M2PL-class | Multidimensional Two-Parameter Logistic Model |
| M3PL-class | Multidimensional Three-Parameter Logistic Model |
| max_score | Calculate the maximum possible score |
| max_score-method | Calculate the maximum possible score |
| mean-method | Calculate the expected value of an Item |
| mean-method | Calculate the expected value of an Itempool |
| mean-method | Calculate the expected value of an Testlet |
| PCM-class | Partial Credit Model |
| person_fit | Calculate person-fit indices |
| person_fit-method | 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.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-method | Calculate the probability of a correct response |
| Rasch-class | Rasch model |
| response | Create a Response object from a vector of responses |
| Response-class | An S4 class representing responses of a single examinee |
| response_set | Create 'Response_set-class' object |
| Response_set-class | An S4 class representing responses of a set of examinees |
| resp_lik | Likelihood of a response string |
| resp_lik-method | Likelihood of a response string |
| resp_loglik | Log-likelihood of a Response String |
| resp_loglik-method | Log-likelihood of a Response String |
| rsss | Convert raw score to scale score and vice versa |
| score_info | Calculate Score Information Function |
| sim_resp | Generate responses for a given model |
| sim_resp-method | Generate responses for a given model |
| summary.cat_output | Summarizes the raw output of cat_sim |
| testlet | Creates a 'Testlet-class' object |
| Testlet-class | An S4 class to represent a Testlet |
| var-method | Calculate the variance of an Item |
| var-method | Calculate the variances of items in an Itempool |
| var-method | Calculate the variances of items in a Testlet |
| $-method | Get slots from an 'Item-class' object. |
| $-method | Get slots of the an 'Itempool-class' object. |
| $-method | Get slots of the an 'Response-class' object. |
| $-method | Get slots of the a 'Response_set-class' object. |
| $-method | Access slots of a 'Testlet-class' object |
| $<--method | Set values to parameters or components of 'Item-class' object |
| $<--method | Set values to parameters or components of 'Itempool' class. |
| $<--method | Set values to components of 'Response' class objects |
| $<--method | Set values to components of 'Response_set' class objects |
| $<--method | Set values to parameters or components of 'Item' class. |
| 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 |