Reading-PGS is modestly but significantly associated with phonological awareness, rapid bimodal temporal processing, decoding and comprehension in 8-year-old twins¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Higher Reading-PGS significantly predicts better performance in PA, RBTP, decoding and comprehension, with explained variance between 1.8% and 3.5%. → Remon 2025

Evidence¶

Remon 2025¶

Remon, A., Mascheretti, S., Voronin, I., Feng, B., Ouellet-Morin, I., Brendgen, M., Vitaro, F., Robaey, P., Andlauer, T. F. M., Boivin, M. & Dionne, G. (2025). Mediational effects of reading-related intermediate phenotypes from polygenic scores to reading skills. npj Science of Learning. https://doi.org/10.1038/s41539-025-00346-x

q2 · i? · associational · r2

Bivariate Pearson correlation analysis of the twin sample (n = 328) reported in the Results. The article states "the Reading-PGS was modestly associated with PA" and lists explained variances of 2.2% (PA), 3.5% (RBTP), 1.8% (Decoding) and 3.2% (Comprehension); no standardized effect size beyond these variances is printed.

"the Reading-PGS was modestly associated with PA (explained variance of 2.2%), RBTP (explained variance of 3.5%), Decoding (explained variance of 1.8%) and Comprehension (explained variance of 3.2%), with higher PGS values significantly predicting better performance in all skills"

Discussion¶

Learner Variables¶

• Phonological Awareness — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Phonological awareness and rapid bimodal temporal processing partially mediate the Reading-PGS-to-reading association — related
• Serial mediation supports a sequence from Reading-PGS through rapid bimodal temporal processing and phonological awareness to decoding and comprehension — related