Table 4.

Model predicting TPVT (NIH Toolbox Picture Vocabulary Test) at 60 months from overall target latency and demographic factors.

Parameter	Estimate	SE	t	P
Model: All trials
Intercept	110.64	12.30	9.00	< .001*
Overall Target Latency	−0.0073	0.0034	−2.16	0.033*
SES	0.21	0.11	1.86	0.066
Sex	−2.39	2.13	−1.12	0.26
Ethnicity	−7.59	5.46	−1.40	0.17
Race	−0.59	1.96	−0.30	0.76
Twin Birth Order	−0.92	2.10	−0.44	0.66
Model: Noun trials only
Intercept	110.19	12.43	8.87	<.001*
Noun Target Latency	−0.0054	0.0030	−1.84	0.068
SES	0.20	0.12	1.74	0.084
Sex	−2.23	2.14	−1.044	0.30
Ethnicity	−8.75	5.53	−1.58	0.12
Race	−0.50	1.97	−0.25	0.80
Twin Birth Order	−0.74	2.13	−0.35	0.73
Model: Verb trials only
Intercept	107.49	12.19	8.82	<.001*
Verb Target Latency	−0.0049	0.0029	−1.71	0.091
SES	−.23	0.11	2.046	0.043*
Sex	−2.16	2.14	−1.010	0.31
Ethnicity	−6.45	5.54	−1.16	0.25
Race	−0.44	1.97	−0.22	0.82
Twin Birth Order	−1.38	2.12	−0.65	0.51

^*p < .05