fit_omission_survival_irt: Response/RT/omission survival IRT reference model

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

Response/RT/omission survival IRT reference model

Description

Fits a response model among reached/answered observations and cause-specific survival models for omission and not-reached processes. The function keeps the missingness mechanisms distinct by construction.

Usage

fit_omission_survival_irt(
  data,
  response = "response",
  response_time = "response_time",
  omission_time = NULL,
  reached = "reached",
  person = "participant_id",
  item = "item_id",
  gaze_exposure = NULL,
  first_fixation_latency = NULL,
  ...
)

Arguments

data	Input data frame or compatible tabular object.
response	Response variable or response-column name.
response_time	Response-time variable or column name.
omission_time	Time associated with an omitted response.
reached	Indicator that the item was reached.
person	Person or participant identifier column.
item	Item identifier, name, or item column.
gaze_exposure	Gaze-based exposure measure.
first_fixation_latency	Latency to first fixation.
...	Additional arguments passed to the selected model, engine, or method.

Value

An object of class "eye_omission_survival_irt", stored as a named list, with components "response_model", "omission_model", "not_reached_model", "classified_data", "state_counts", "status", "note". It contains response/RT/omission survival IRT reference model and associated metadata or diagnostics needed to interpret the result.

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