Table 1.

Weighted root mean squared error (WRMSE) values for the PDI-14 expected item and scale score functions by group

Item	Pregnant				Postpartum
	White		Non-White		White		Non-White
	Public	Private	Public	Private	Public	Private	Public	Private
	N = 197	N = 65	N = 241	N = 125	N = 53	N = 57	N = 71	N = 70
1	0.009	0.049	0.009	0.049	0.009	0.049	0.009	0.049
2	0.007	0.055	0.007	0.055	0.007	0.055	0.007	0.055
3	0.007	0.017	0.007	0.017	0.007	0.017	0.007	0.017
4	0.030	0.030	0.005	0.005	0.030	0.030	0.005	0.005
5	0.010	0.010	0.019	0.019	0.010	0.010	0.019	0.019
6	0.009	0.060	0.009	0.060	0.009	0.060	0.009	0.060
7	0.012	0.012	0.012	0.012	0.012	0.012	0.012	0.012
8	0.025	0.079	0.024	0.032	0.025	0.079	0.024	0.032
9	0.006	0.033	0.006	0.033	0.006	0.033	0.006	0.033
10	0.005	0.015	0.005	0.015	0.005	0.015	0.005	0.015
11	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002
12	0.007	0.007	0.007	0.007	0.007	0.007	0.007	0.007
13	0.014	0.014	0.014	0.014	0.014	0.014	0.014	0.014
14	0.012	0.056	0.012	0.056	0.012	0.056	0.012	0.056
PDI-14 scale score	0.068	0.400	0.025	0.332	0.068	0.400	0.025	0.332