Package index • eatModel

All functions

checkContextVars(): check for consistency of context variables and items
checkLinking(): check for linked design
compareDefineModelObjects(): Compares two defineModel objects
correlationFromRes(): Gives correlation estimates from the object returned by getResults()
defineModel(): Prepares IRT analysis for Conquest, TAM, or mirt
des2: Exemplary test design which may be typical in the context of large-scale assessment.
des3: Exemplary test design for math and sciences (Biology, Chemistry, Physics).
eapFromRes(): Collects all EAP results from the object returned by getResults()
eapRelFromRes(): Gives EAP reliability from the object returned by getResults()
eatModel-package: Specify and run IRT models from R (using Conquest, TAM, or mirt), including equating methods and parameter transformation.
equat1pl(): 1pl equating with optional elimination of linking DIF items
get.dsc(): Read Conquest ‘descriptives’ output files.
get.equ(): Reads equivalence table created in Conquest analysis.
get.itn(): Read ConQuest ‘itanal’ Output Files
get.plausible(): Read Conquest Plausible Values Output Files
get.prm(): Read Conquest prm (parameter) Output Files
get.shw(): Read ConQuest showfiles
get.wle(): Read Conquest WLE or MLE Output Files
getResults(): Collect all results from Conquest, TAM, or mirt analyses into a common data frame
itemFromRes(): Collect all item results from the object returned by getResults()
multiEquatError(): 1pl linking errors for three measurement occasions
plotDevianceConquest(): Deviance Plot for Conquest log files
plotDevianceMirt(): Deviance Plot for mirt objects
plotICC(): Plots item characteristic curves.
pvFromRes(): Collects all plausible values from the object returned by getResults()
q3FromRes(): Extracts the Q3 matrices from the object returned by getResults()
reading: Dichotomous and partial credit responses for reading comprehension data obtained from large-scale assessment
regcoefFromRes(): Gives regression coefficients (betas) from the object returned by getResults()
replaceLinkingError(): Output interface for multiEquatError
runModel(): Run IRT model specified by 'defineModel' using Conquest, TAM, ort mirt
simEquiTable(): Computes equivalence table for the Rasch and partial credit model
splitModels(): Create several models by splitting the qMatrix and/or person.groups
transformToBista(): Transformation of item and person parameters to the Bista metric.
trends: Reading and listening achievement test data obtained from large-scale assessment at three times of measurement
wleFromRes(): Collects all WLEs from the object returned by getResults()
wleRelFromRes(): Gives WLE reliability from the object returned by getResults()