cumulative_traceline_pts: Ordinal tracelines.

In regDIF: Regularized Differential Item Functioning

Ordinal tracelines.

Description

Ordinal tracelines.

Usage

cumulative_traceline_pts(
  p_item,
  theta,
  pred_data,
  samp_size,
  num_responses_item,
  num_quad
)

Arguments

p_item	Vector of item parameters.
theta	Vector of theta values.
pred_data	Matrix or dataframe of DIF and/or impact predictors.
samp_size	Sample size in dataset.
num_responses_item	Number of responses for item.
num_quad	Number of quadrature points used for approximating the latent variable.

Value

a "matrix" of probability values for categorical (cumulative) item likelihood

regDIF documentation built on May 29, 2024, 9:31 a.m.