Q3_stat: Item Fit indexes 'Q3'statistics. Diagnosis Local Item...

In takuizum/irtfun2: Some useful functions for IRT

Description

Item Fit indexes 'Q3'statistics. Diagnosis Local Item Independence(LID)

Usage

Q3_stat(
  x,
  para,
  theta,
  fc = 3,
  D = 1.702,
  use = "pairwise.complete.obs",
  abs_value = 0.2
)

Arguments

x	data.frame of item response data.
para	item parameter data.frame estimated by estip.
theta	theta parameter vector. This length must be same to x.
fc	a first column of item response data.frame.
D	a scale constant
use	an optional character string giving a method for computing covariances in the presence of missing values. See cor
abs_value	an absolute value for Q3.

takuizum/irtfun2 documentation built on May 10, 2020, 8:30 a.m.