Table 1.

Correlation of maternal speech segmental, suprasegmental, and lexical properties.

Variable	Vowel space area	Vowel dispersion	Speech rate	Normalized median F0	Normalized F0 variability	Lexical quantity	Lexical diversity
Vowel space area	1.0
Vowel dispersion	.05	1.0
Speech rate	−.07	.22	1.0
Normalized median F0	.02	−.11	−.53**	1.0
Normalized F0 variability	−.10	.30	.32	−.70***	1.0
Lexical quantity	.14	−.12	.17	.12	−.09	1.0
Lexical diversity	.03	.11	.22	−.27	.09	−.43**	1.0

Note. F0 = fundamental frequency.

^** p < .01.

^*** p < .001.