process_item_information: 2PL response item information

In eyeprocess: Harmonize Eye-Tracking, Pupillometry, Biometrics, and Psychometric Process Data

2PL response item information

Description

2PL response item information

Usage

process_item_information(
  theta,
  a,
  b,
  process_information = 0,
  rt_information = 0,
  weights = c(response = 1, rt = 0, process = 0),
  expected_time = 0,
  burden_weight = 0
)

Arguments

theta	Latent-trait values.
a	Item discrimination parameter or parameters.
b	Item difficulty/location parameter or parameters.
process_information	Information supplied by the process channel.
rt_information	Information supplied by response time.
weights	Weights used to combine information components.
expected_time	Expected response time or burden.
burden_weight	Penalty applied to expected burden.

Value

An object of class "eye_process_item_information", stored as a named list, with components "theta", "response_information", "utility". It contains 2PL response item information and associated metadata or diagnostics needed to interpret the result.

eyeprocess documentation built on Sept. 28, 2026, 5:08 p.m.