Table 8. Multivariate and univariate linear models, investigating whether delta/theta ratio of PSD power (~1.92 Hz/4.35 Hz) at 11 months predicted either infant-led or parent-estimated language outcomes.

The table details the multivariate linear models followed by the univariate linear models describing whether delta/theta ratio of PSD power (~1.92 Hz/4.35 Hz) at 11 months predicted a) infant-led language measures or b) the parent-estimated language measures. Bonferroni correction for multiple comparisons in the univariate models led to modified significant alpha levels of, p = <0.01 for infant-led and p = <0.025 for parent-estimated (denoted by bold italic text). Modified alpha level for trends are p = <0.02 for infant-led and p = <0.05 for parent-estimated (denoted by bold text).

Theta / delta ratio of PSD power at 11 months a, Infant-led language measures
Multivariate linear model	Df num	Df denom	F	p
Infant-led language measures	5	65	2.68	0.029
Univariate linear models	Df	β estimate	SE	p
NWR Consonants, 24 months	1,79	-0.019	0.032	0.56
NWR Syllables, 24 months	1,79	-0.058	0.032	0.07
NWR Stress, 24 months	1,79	-0.044	0.029	0.14
CCT, 18 months	1,79	-0.023	0.023	0.32
Pointing, 12 months	1,90	-0.065	0.049	0.19
b, Parent-estimated language measures
Multivariate linear model	Df num	Df denom	F	p
Parent-estimated language measures	2	75	3.65	0.031
Univariate linear models	Df	β estimate	SE	P
CDI comprehension, 24 months	1,76	-6.760	16.44	0.68
CDI production, 24 months	1,76	-28.55	16.82	0.094