computeInfoAtCurrentTheta function

(Internal) Compute item information at current theta estimate

computeInfoAtCurrentTheta is an internal function for computing item information at current theta estimate.

computeInfoAtCurrentTheta(
  item_selection,
  j,
  current_theta,
  item_pool,
  model_code,
  info_fixed_theta,
  info_grid,
  item_parameter_sample
)

Arguments

• item_selection: the item_selection slot of a config_Shadow object.
• j: the examinee index.
• current_theta: a named list containing current theta estimate.
• item_pool: an item_pool object.
• model_code: machine-sanitized item model codes for passing onto C++ functions.
• info_fixed_theta: a list containing item information at prespecified theta points.
• info_grid: a matrix containing item information across quadrature points.
• item_parameter_sample: a list containing item parameter samples for Bayesian estimation.