Word reading speed carries a trait-specific genetic factor not present for passage reading accuracy¶

Claim · All claims
Evidence · 1 study · associational r3 · q2
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? In the word reading subset model, the shared factor captured only 56% (SE = 0.14) of SNP-h2 for word reading speed, with the remaining 44% (SE = 0.14) trait-specific. → Chin Yang Shapland 2021

Evidence¶

Chin Yang Shapland 2021¶

Chin Yang Shapland, Ellen Verhoef, George Davey Smith, Simon E. Fisher, Brad Verhulst, Philip S. Dale and Beate St Pourcain. (2021). Multivariate genome-wide covariance analyses of literacy, language and working memory skills reveal distinct etiologies. npj Science of Learning 6:23. https://doi.org/10.1038/s41539-021-00101-y

q2 · i? · associational · r3

Multi-domain GSEM word reading subset (N = 6383), IPC model: unlike passage reading accuracy, word reading speed showed a large trait-specific genetic factor; the article reports the shared factor "only captured 56% (SE = 0.14)" of its SNP-h2.

"the shared factor only captured 56% (SE = 0.14) of the SNP-h2 for word reading speed (age 13), while the remaining 44% (SE = 0.14) were captured by a trait-specific factor"

Discussion¶

Related Claims¶

• Listening comprehension shows trait-specific genetic variance beyond the shared genetic factor — related
• Non-word repetition (PWM) shows trait-specific genetic variance beyond the shared genetic factor — related
• Literacy, phonological awareness, oral language and PWM abilities share a large proportion of underlying genetic variation in unrelated youth — related