audit_process_adjusted_dif: Audit DIF before and after process-data adjustment

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

Audit DIF before and after process-data adjustment

Description

Audit DIF before and after process-data adjustment

Usage

audit_process_adjusted_dif(
  data,
  response = "response",
  ability,
  group,
  item = "item_id",
  process_features,
  person = "participant_id"
)

Arguments

data	Input data frame or compatible tabular object.
response	Response variable or response-column name.
ability	Value supplied to 'ability'; see Details for its model-specific role.
group	Value supplied to 'group'; see Details for its model-specific role.
item	Item identifier, name, or item column.
process_features	Names of process-derived features.
person	Person or participant identifier column.

Value

An object of class "eye_process_adjusted_dif", stored as a named list, with components "unadjusted_model", "adjusted_model", "coefficients", "surrogate", "note". It contains dIF before and after process-data adjustment and associated metadata or diagnostics needed to interpret the result.

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