Data Management and Analysis of Tests


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Documentation for package ‘dexter’ version 0.8.5

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dexter-package Dexter: data analyses for educational and psychological tests.
ability Estimate abilities
ability_tables Estimate abilities
add_booklet Add response data to a project
add_item_properties Add item properties to a project
add_person_properties Add person properties to a project
add_response_data Add response data to a project
add_test3DC Add a standard setting booklet to a 3DC database
close_project Close a project
coef.p2pass extract equating information
coef.prms extract enorm item parameters
create3DC Create a database for the 3DC standard setting application
design_as_network Deprecated test design functions
design_info Information about the design
design_is_connected Deprecated test design functions
dexter Dexter: data analyses for educational and psychological tests.
DIF Exploratory test for Differential Item Functioning
distractor_plot Distractor plot
expected_score Functions of theta
fit_domains Estimate the Rasch and the Interaction model per domain
fit_enorm Fit the extended nominal response model
fit_inter Estimate the Interaction and the Rasch model
get_booklets Booklets entered in a project
get_design Test design
get_items Items in a project
get_item_properties Item properties in a project
get_persons Persons in a project
get_person_properties Person properties in a project
get_responses Selecting data
get_rules Get scoring rules
get_testscores Provide test scores
get_variables Variables that are defined in the project
iModels Interactive model display
individual_differences Test individual differences
information Functions of theta
iTIA Interactive test-item analysis
keys_to_rules Derive scoring rules from keys
open_project Open an existing project
plausible_scores Generate plausible testscores
plausible_values Draw plausible values
plot.DIF_stats plot method for DIF
plot.p2pass A plot method for probability_to_pass
plot.prms Plot for the extended nominal Response model
plot.rim A plot method for the interaction model
plot3DC Show 3DC plots
probability_to_pass The probability to pass on a reference test given a score on a new booklet
profiles Profile analysis
profile_plot Profile plot
profile_tables Profile analysis
ratedData Rated data
ratedDataProperties Item properties in the rated data
ratedDataRules Scoring rules for the rated data
read_oplm_par Read item parameters from oplm PAR or CML files
r_score Functions of theta
start_new_project Start a new project
start_new_project_from_oplm Start a new project from oplm files
tia_tables Simple test-item analysis
touch_rules Add or modify scoring rules
verbAggrData Verbal aggression data
verbAggrProperties Item properties in the verbal aggression data
verbAggrRules Scoring rules for the verbal aggression data