. Author manuscript; available in PMC: 2026 Apr 1.

Published before final editing as: J R Stat Soc Ser A Stat Soc. 2025 Apr 1:10.1093/jrsssa/qnaf033. doi: 10.1093/jrsssa/qnaf033

Table 6.

Estimated class probabilities and support points for exploratory two-dimensional 3 and 4 class latent IRT models, adjusted for race and ethnicity group

Quality		Ambulatory care		Acute care
Class	$\hat{π}$	${\hat{ξ}}_{1}$	$s e ({\hat{ξ}}_{1})$	${\hat{ξ}}_{2}$	$s e ({\hat{ξ}}_{2})$

1	0.09	−3.31	0.062	0.17	0.049
2	0.26	−4.28	0.163	1.37	0.044
3	0.65	−2.89	0.039	2.96	0.061

1	0.09	−3.48	0.051	0.18	0.048
2	0.25	−3.83	0.091	1.36	0.060
3	0.60	−3.43	0.060	2.82	0.047
4	0.06	−1.06	0.143	3.80	0.571