ELE and PK scales were discreetly correlated (.23) and predicted TA reading and TA writing at seven years of age. ELE correlated (.19) with TA reading and TA writing, while PK correlated (.29) with TA reading and (.26) with TA writing. Moreover, PK explained 5-6% of the variance in the literacy outcome measures of ELE. The heritability of ELE estimated from TA reading model as the squared path coefficient leading to ELE was (.22) and the heritability of PK was (.21). The heritability of TA reading was (.59), while TA writing estimated the same heritability as ELE and PK. The heritability for TA writing was (.63). Genetic influences on ELE predicted genetic variance in TA reading (.11) and TA writing (.08), but genetic mediation only accounted for 1-2% of genetic variance. In contrast, genetic influence on PK predicted the genetic variance in TA reading (.12) and TA writing
ELE and PK scales were discreetly correlated (.23) and predicted TA reading and TA writing at seven years of age. ELE correlated (.19) with TA reading and TA writing, while PK correlated (.29) with TA reading and (.26) with TA writing. Moreover, PK explained 5-6% of the variance in the literacy outcome measures of ELE. The heritability of ELE estimated from TA reading model as the squared path coefficient leading to ELE was (.22) and the heritability of PK was (.21). The heritability of TA reading was (.59), while TA writing estimated the same heritability as ELE and PK. The heritability for TA writing was (.63). Genetic influences on ELE predicted genetic variance in TA reading (.11) and TA writing (.08), but genetic mediation only accounted for 1-2% of genetic variance. In contrast, genetic influence on PK predicted the genetic variance in TA reading (.12) and TA writing