Data Management and Analysis of Tests

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Documentation for package ‘dexter’ version 1.8.0

• DESCRIPTION file
• User guides, package vignettes and other documentation
• Package NEWS
• Package README

Help Pages

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
close_project	Close a project
coef.enorm	extract enorm item parameters
coef.inter	Extract interaction model parameters
coef.latent_cor	latent correlations
coef.p2pass	extract equating information
coef.sts_par	Standard setting
design_info	Information about the design
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_persons	Persons in a project
get_responses	Selecting data
get_resp_data	Functions for developers
get_resp_matrix	Functions for developers
get_rules	Get scoring rules
get_testscores	Get test scores
get_variables	Variables that are defined in the project
individual_differences	Test individual differences
information	Functions of theta
keys_to_rules	Derive scoring rules from keys
latent_cor	Latent correlations
open_project	Open an existing project
plausible_scores	Draw plausible test scores
plausible_values	Draw plausible values
plot.DIF_stats	plot method for pairwise DIF statistics
plot.enorm	Plot for the extended nominal Response model
plot.inter	A plot method for the interaction model
plot.p2pass	A plot method for probability_to_pass
plot.sts_par	Standard setting
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
p_score	Functions of theta
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
r_score_IM	Simulation from the interaction model
standards_3dc	Standard setting
standards_db	Export a standard setting database for use by the free 3DC application
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
vcov.enorm	extract enorm item parameters
verbAggrData	Verbal aggression data
verbAggrProperties	Item properties in the verbal aggression data
verbAggrRules	Scoring rules for the verbal aggression data