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Directional multidimensional 2PL information

Source: R/090-irt-multidimensional-cdm-0-9.R
eyeprocess_mirt_directional_information.Rd

Directional multidimensional 2PL information

Usage

eyeprocess_mirt_directional_information(
  theta,
  discrimination,
  difficulty = 0,
  direction = NULL,
  D = 1
)

Arguments

theta

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

discrimination

Discrimination vector or matrix.

difficulty

Item difficulty or location parameter.

direction

Direction vector used to project multidimensional information.

D

Logistic scaling constant.

Value

A numeric value or vector containing directional multidimensional 2PL information.