Fit an event-time IRT reference workflow — fit_event_time

The built-in Cox reference conditions on an already supplied theta and is therefore an event-time *measurement diagnostic*, not a full continuous-time latent-trait estimator. A validated exact implementation can be supplied via `external_engine`.

Usage

fit_event_time_irt(
  data,
  event_time = "event_time",
  event = "event",
  theta = "theta",
  person = "participant_id",
  item = "item_id",
  engine = c("cox_reference", "external"),
  external_engine = NULL,
  ...
)

Arguments

data: Long event/item data.
event_time: Time-to-event column.
event: Event indicator (1 event, 0 censored).
theta: Supplied latent-trait column for the reference engine.
person, item: Person and item identifiers.
engine: `cox_reference` or `external`.
external_engine: Function implementing a study-specific event-time IRT.
...: Additional arguments passed to the external engine.