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Differential item functioning effect curve from two parameter sets

Source: R/086-irt-linking-invariance-0-9.R
eyeprocess_irt_dif_effect_curve.Rd

Differential item functioning effect curve from two parameter sets

Usage

eyeprocess_irt_dif_effect_curve(
  reference_item,
  focal_item,
  theta = seq(-4, 4, length.out = 81)
)

Arguments

reference_item

Reference-group item parameters.

focal_item

Focal-group item parameters.

theta

Latent-trait value or vector of latent-trait values.