Diagnostic function for equating

Diagnoses potential issues with person parameter estimation by displaying theta values and expected scores for each source score.

Usage

diagnose_equating(
  fit,
  direction = c("1to2", "2to1"),
  method = c("optimize", "newton")
)

Arguments

fit

A leunbach_ipf object

direction

Direction of equating: "1to2" or "2to1"

method

Optimization method: "optimize" or "newton"