A comparison of heritability estimates of language and reading skills in past twin studies and the present Chinese twin study.

Note. Studies with typically-developing samples in the age range of 3 to 11 years are included in this table. Studies based on the same sample are denoted by the same superscript in the Authors column. In case of studies examined the same variable based on the same sample, the study with the largest sample in the analyses is included. Superscript CA denotes estimates with general cognitive ability accounted for. References for this table are given in Text S1.