items2R: MIRT items (.PAR) file to an R data.frame.

In Karel-Kroeze/R2MIRT: What the package does (short line)

Description

MIRT items (.PAR) file to an R data.frame.

MIRT items (.PAR) file to an R data.frame.

Usage

items2R(run, model = c("1PL", "2PL", "M2PL"), method = c("EAP", "WML",
  "ML"))

items2R(run, model = c("1PL", "2PL", "M2PL"), method = c("EAP", "WML",
  "ML"))

Arguments

run	Name of MIRT run, without any extention. Assumes working dir is set correctly.
model	Type of model, MIRT will run up to 3 estimations - Rasch (1PL/PCM), Birnbaum/Lord (2PL/GPCM) and a multidimensional version of each. Leaving model blank will return all available sets of parameter estimates in a list, specifying a model will return that specific set of parameters.
run	Name of MIRT run, without any extention. Assumes working dir is set correctly.
model	Type of model, MIRT will run up to 3 estimations - Rasch (1PL/PCM), Birnbaum/Lord (2PL/GPCM) and a multidimensional version of each. Leaving model blank will return all available sets of parameter estimates in a list, specifying a model will return that specific set of parameters.

Value

(list of) list with itembank parameters, a, b and m, where applicable. (m is the number of cats in an item, a and b are KxQ and KxM matrices, where M is max(m))

(list of) list with itembank parameters, a, b and m, where applicable. (m is the number of cats in an item, a and b are KxQ and KxM matrices, where M is max(m))

Karel-Kroeze/R2MIRT documentation built on May 8, 2019, 4:46 p.m.