The IRT procedure is at production status in this release.
The POLYCHORIC option in the PROC IRT statement displays the polychoric correlation matrix.
The PLOTS=POLYCHORIC option in the PROC IRT statement displays a heat map for the polychoric correlation matrix.
The PLOTS=IIC option in the PROC IRT statement displays item characteristic curves.
The PLOTS=TIC in the PROC IRT statement displays a test information curve plot.