Compare psychometric DIF effect sizes with process-channel contrasts

Compare psychometric DIF effect sizes with process-channel contrasts

Usage

eyeprocess_irt_process_dif_concordance(
  dif,
  process,
  item_id = "item_id",
  dif_effect = "effect",
  process_effect = "effect"
)

Arguments

dif

Differential-item-functioning evidence or summary.

process

Process-measure columns or process object.

item_id

Item identifier or vector of item identifiers.

dif_effect

DIF effect used for concordance.

process_effect

Process-side item effect used for concordance.

Value

An object of class "eye_irt_process_dif_concordance", stored as a named list, with components "n", "correlation", "table", "guardrail". It contains psychometric DIF effect sizes with process-channel contrasts and associated metadata or diagnostics needed to interpret the result.