MirtEAPs: Function to extract EAP ability estimates from a mirt object

In CambridgeAssessmentResearch/unimirt: Applications of Unidimensional IRT using the R Package 'mirt'

Function to extract EAP ability estimates from a mirt object

Description

A wrapper for the "fscores" function from the package "mirt". However, by default, this function will ensure any fake data added by the linkaugmentdata function as a pre-cursor to model fitting is excluded. Furthermore, this function automatically includes standard errors for each estimate and returns the ability estimates and standard errors in a data frame.

Usage

MirtEAPs(mirtobj, excludefake = TRUE)

Arguments

mirtobj	An estimated unidimensional IRT model (of class SingleGroupClass) estimated either using the function "unimirt" or by applying the function "mirt" directly.
excludefake	A logical value dnoting whether any added "fake" cases should be excluded from the returned ability estimates (default=TRUE).

Value

A data frame with column labels "eap" and "se.eap".

See Also

fscores

Examples

## Not run: 
mirt1=unimirt(mathsdata,"2")
MirtEAPs(mirt1)

## End(Not run)

CambridgeAssessmentResearch/unimirt documentation built on June 10, 2025, 6:03 a.m.