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

Published in final edited form as: J Speech Lang Hear Res. 2014 Jun 1;57(3):917–928. doi: 10.1044/1092-4388(2013/12-0350)

Table 5.

MZ and DZ Proband and Cotwin Means, Parameter Estimates (with 95% Confidence Intervals) on Heritability and Environmental Effects, and Number of MZ and DZ Twin Pairs in a Sample Selected for LLE

Variable	MZ Proband Mean	MZ Cotwin Mean	DZ Proband Mean	DZ Cotwin Mean	h²_g	c²_g	e²_g	MZ Twin Pairs	DZ Twin Pairs
Words Produced	−1.48	−1.46	−1.56	−1.24	.42 [.18, .67]	.58 [.39, .78]	.01	35	40
Mini-Finiteness	−1.45	−1.34	−1.56	−1.08	.44 [.04, .84]	.48 [.19, .76]	.08	26	48

Note: h²_g = Heritability, c²_g = Shared-Environment, e²_g= Non-Shared Environment