Table 3

Item locations (in location order) and fit statistics SDQ-P subscales (n=1000)

Subscale and items	Location	SE	Fit residual	χ² value	df	P value
Emotional Problems*
16 Māori	−0.871	0.113	−0.226	2.968	4	0.5631
16 NZE	−0.692	0.124	−0.036	0.60	3	0.8960
16 Asian	−0.538	0.118	−0.101	0.77	3	0.8569
16 Pasifika	−0.450	0.120	0.911	0.61	3	0.8936
24 Asian	−0.250	0.124	−0.185	5.13	3	0.1629
24 Māori	0.010	0.117	−0.737	9.69	4	0.0461
24 Pasifika	0.024	0.124	−0.002	11.857	3	0.0079
24 NZE	0.243	0.127	−1.610	14.095	3	0.0028
3	0.653	0.070	−0.615	15.156	5	0.0097
8	0.908	0.075	−1.970	21.479	5	0.0007
13	0.965	0.080	−1.423	16.749	5	0.0050
Conduct Problems†
5	−0.985	0.063	0.011	15.38	5	0.0089
18	−0.707	0.066	−0.352	22.19	5	0.0005
7 Male	−0.594	0.096	1.209	7.71	5	0.1732
7 Female	−0.271	0.100	1.917	6.09	5	0.2975
22	−0.012	0.072	0.156	8.49	5	0.1312
12 Pasifika	0.089	0.143	−0.148	3.527	5	0.6193
12 Māori	0.339	0.145	−0.512	5.862	5	0.3199
12 Asian	0.838	0.202	−0.030	2.344	5	0.7998
12 NZE	1.304	0.211	−1.049	3.733	5	0.5884
Hyperactivity*
15 Asian	−0.491	0.109	−0.395	8.25	5	0.1432
15 Māori	−0.315	0.117	0.433	1.78	6	0.9388
21 NZE	−0.234	0.142	2.204	17.50	5	0.0037
2	−0.206	0.056	−1.327	23.29	9	0.0056
21 Asian	−0.186	0.124	1.414	8.216	5	0.1447
15 Pasifika	−0.019	0.121	0.388	8.775	5	0.1184
15 NZE	0.032	0.126	−1.737	12.772	5	0.0256
21 Māori	0.114	0.129	1.743	7.403	6	0.2852
21 Pasifika	0.234	0.122	1.393	5.986	5	0.3076
25	0.360	0.066	1.421	9.335	9	0.4070
10	0.712	0.065	−1.984	22.26	9	0.0081
Peer Problems†
23 A	−0.968	0.109	−0.571	1.959	4	0.7432
23 P	−0.870	0.107	0.307	4.311	5	0.5056
23 M	−0.217	0.119	0.038	5.529	4	0.2372
6	−0.026	0.065	0.526	10.572	9	0.3062
23 N	0.130	0.154	0.093	3.548	3	0.3147
11	0.233	0.066	−1.419	17.787	9	0.0377
19	0.491	0.071	0.131	12.305	9	0.1967
14	1.227	0.084	−0.763	23.501	9	0.0052
Prosocial‡
1	−0.487	0.079	−1.530	18.205	4	0.0011
4	−0.036	0.073	−0.273	12.624	4	0.0133
9	0.000	0.072	1.092	6.74	4	0.1502
17	0.008	0.071	−1.633	21.52	4	0.0003
20	0.515	0.073	1.972	7.52	4	0.1109
Difficulty§
15	−0.835	0.054	−2.777	27.39	9	0.0012
LD items¶	−0.606	0.037	−1.744	14.01	9	0.1221
5	−0.583	0.056	−0.595	8.71	9	0.4645
DIF items**	−0.375	0.031	−2.500	21.03	9	0.0125
25	−0.331	0.061	0.036	14.05	9	0.1207
24	−0.314	0.058	0.839	7.44	9	0.5911
18	−0.313	0.059	−0.742	6.83	9	0.6553
6	−0.137	0.061	1.137	4.47	9	0.8777
7	−0.026	0.063	−1.305	23.26	9	0.0057
11	0.117	0.067	0.862	9.76	9	0.3702
22	0.308	0.068	−1.218	14.07	9	0.1199
3	0.311	0.071	1.017	11.50	9	0.2433
19	0.413	0.072	−1.247	10.59	9	0.3048
8	0.561	0.077	0.105	4.79	9	0.8525
13	0.646	0.087	0.621	9.37	9	0.4035
14	1.164	0.084	−2.326	13.15	9	0.1560

*Bonferroni corrections applied p value is statistically significant if <0.005.
†Bonferroni corrections applied p value is statistically significant if <0.006.
‡Bonferroni corrections applied p value is statistically significant if <0.01.
§Bonferroni corrections applied p value is statistically significant if <0.003.
¶LD items; combined into a testlet (items 2 and 10).
**DIF items combined into a testlet (items 12, 16, 21, 23).
DIF, differential item functioning; LD. local dependency; NZE, New Zealand European; SDQ-P, Strengths and Difficulties Questionnaire parents.