Table 2.

Model predicting TPVT (NIH Toolbox Picture Vocabulary Test) at 36 months from target latency (overall, nouns only, verbs only) and demographic factors.

Parameter	Estimate	SE	t	p
Models: All trials
Intercept	97.88	14.98	6.53	< .001*
Overall Target Latency	−0.018	0.0042	−2.79	0.0062*
SES	0.16	0.14	1.14	0.26
Sex	1.46	2.58	0.57	0.57
Ethnicity	−1.69	7.19	−0.23	0.82
Race	−1.20	2.33	−0.51	0.61
Twin Birth Order	0.13	2.56	0.049	0.96
Model: Noun trials only
Intercept	98.18	15.25	6.44	<.001*
Noun Target Latency	−0.0090	0.0037	−2.43	0.017*
SES	0.15	0.15	1.033	0.30
Sex	1.68	2.60	0.65	0.52
Ethnicity	−3.82	7.30	−0.52	0.60
Race	−1.29	2.36	−0.55	0.58
Twin Birth Order	0.43	2.59	9.17	0.87
Model: Verb trials only
Intercept	92.41	14.82	6.24	<.001*
Verb Target Latency	−0.0081	0.0035	−2.31	0.023*
SES	0.20	0.15	1.36	0.18
Sex	1.87	2.60	0.72	0.47
Ethnicity	0.29	7.31	0.039	0.97
Race	−0.86	2.35	−0.37	0.72
Twin Birth Order	−0.54	2.58	−0.21	0.83

^*p < .05