Table 3.

Parameter estimates for linear mixed-effects model with vocabulary treated as a continuous variable.

Variable	Estimate	SE	t value	p value
Intercept	−0.28	0.705	−0.396
Time, s	−0.063	0.400	−0.16	.87
Condition	1.95	0.395	4.94	< .0001*
Vocabulary	0.00165	0.0081	0.203	.84
Time × Condition	−1.00	0.222	−4.51	< .0001*
Time × Vocabulary	−0.00129	0.00451	−0.285	.77
Condition × Vocabulary	−0.0218	0.0054	−4.047	< .0001*
Time × Condition × Vocabulary	0.0126	0.00304	4.16	< .0001*
Age (months, centered around mean)	−0.0612	0.028	−2.203	.028*

Note. Note that the values for the parameter estimates are very small because of the scale of the raw vocabulary score, which ranges from 0 to 100.

^*Statistically significant.