. Author manuscript; available in PMC: 2015 Oct 1.

Published in final edited form as: J Speech Lang Hear Res. 2014 Oct 1;57(5):1666–1678. doi: 10.1044/2014_JSLHR-S-13-0292

Table 5.

Correlation coefficient matrix of the six selected acoustic variables for children with CP (n=22)

	Vowel Space	Vowel Duration	Average F2 Slope	A1-P1	F0	SNR
Vowel Space	1	−.599^**	.603^**	.002	−.419	−.345
Vowel Duration		1	−.728^**	−.311	−.064	.528^*
Average F2 Slope			1	.427^*	.002	−.427^*
A1-P1				1	.093	−.264
F0					1	.325
SNR						1

p-value < 0.05

^**

p-value < 0.01