Stocking-Lord characteristic-curve linking

Usage

eyeprocess_irt_stocking_lord_link(
  reference,
  focal,
  anchors = NULL,
  theta = seq(-4, 4, length.out = 81),
  weights = NULL,
  start = c(A = 1, B = 0)
)

Arguments

reference: Reference-form or reference-group item parameters.
focal: Focal-form or focal-group item parameters.
anchors: Anchor-item identifiers.
theta: Latent-trait value or vector of latent-trait values.
weights: Optional numerical weights.
start: Starting values for numerical optimization.