run_item_irt: IRT item tests for DIF

View source: R/IRT-Functions.R

run_item_irtR Documentation

IRT item tests for DIF

Description

Test each item for DIF using IRT models

Usage

run_item_irt(
  global.irt,
  which.model = "nonuniform.mod",
  items2test,
  scheme = "add",
  Wald = TRUE
)

Arguments

global.irt

an object returned from run_global_irt

which.model

the model in global.irt to use for testing DIF. Options are "no.dif.mod" (default), "uniform.mod" or "nonuniform.mod".

items2test

numeric; the item to test for DIF, which is passed to the items2test argument of DIF.

Value

an object returned from DIF


knickodem/WBdif documentation built on Feb. 3, 2024, 2:20 a.m.