The indirect effect of RU2-Short on reading outcomes through phonological awareness is conditional on home environment: significant at low and medium parental education and low SES, but not at high parental education or high SES¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? For word reading accuracy, the conditional indirect effect of RU2-Short through phonological awareness was significant when parental education was low and medium but not when parent education was high. → Li 2024 q3 i? The conditional indirect effect was significant when SES was low but not when SES was high. → Li 2024

Evidence¶

Li 2024¶

Li, M., DeMille, M. M. C., Lovett, M. W., Bosson-Heenan, J., Frijters, J. C., Gruen, J. R. & the GRaD Study Consortium. (2024). Phonological awareness mediates the relationship between DCDC2 and reading performance with home environment. npj Science of Learning 9, 36. https://doi.org/10.1038/s41539-024-00247-5

q3 · i? · associational · r2

Moderated mediation models (Table 4) tested with PROCESS in the GRaD sample; the same pattern held for word reading fluency and reading comprehension, and for SES (low SES b = −2.91 vs. high SES b = −0.05, CI crossing zero).

"When parental education was low and medium, there was a significant indirect effect of RU2Short on word reading accuracy through phonological awareness (c’ path: b = −3.39, 95% CI [−5.01, −1.78]; b = −1.93, 95% CI [−3.01, −0.86]) but not when parent education was high (c’ path: b = −0.47, 95% CI [−2.01, 1.03])."

Discussion¶

Learner Variables¶

• Home Learning Environment — moderator: an instructional effect differs with it

Related Claims¶

• The observed gene-by-environment pattern supports the diathesis-stress model over the bioecological model of G × E interaction on reading, in this sample of unrelated children — related
• Parental education and SES moderate the relationship between RU2-Short and reading outcomes — a broader claim this one bears on
• Phonological awareness mediates the effect of the DCDC2-READ1 RU2-Short allele on word reading accuracy, word reading fluency, and reading comprehension — related
• RU2-Short correlates negatively with phonological awareness and reading comprehension, and positively with SES, in the overall sample — related