CogPGS and SES each showed large, independent, positive effects on all three intelligence domains¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? CogPGS and SES both showed independent significant effects (all p's < 0.001) for cIQ, fIQ, and WM, with the largest effects for cIQ (cogPGS β = 0.16; SES β = 0.29). → Nicholas Judd 2022

Evidence¶

Nicholas Judd 2022¶

Nicholas Judd, Bruno Sauce and Torkel Klingberg. (2022). Schooling substantially improves intelligence, but neither lessens nor widens the impacts of socioeconomics and genetics. npj Science of Learning. https://doi.org/10.1038/s41539-022-00148-5

q3 · i? · causal · r2

Main-effect estimates from the mixed-effects regression discontinuity models in 6567 children. CogPGS effects were similar for fIQ (β = 0.09) and WM (β = 0.09); SES was slightly higher for WM (β = 0.22) than fIQ (β = 0.18).

"CogPGS and SES both showed independent significant effects (all p's< 0.001) for cIQ, fIQ, and WM. The effect sizes of cogPGS ( β = 0.16) and SES ( β = 0.29) were the largest for cIQ."

Discussion¶

Related Claims¶

• Schooling showed no significant interaction with cogPGS or SES on any intelligence domain, and Bayesian ROPE analysis found interaction effects under 0.05 SD with 95% probability — related
• In a European-ancestry subsample, main-effect results stayed generally the same with slightly larger cogPGS and smaller SES effects, and interactions remained non-significant — related
• All SES subcomponents (parental education, family income, neighborhood quality) significantly predicted each intelligence domain, with education and income effects about twice neighborhood quality — a narrower finding that bears on this claim
• Within-family cogPGS effect on crystallized intelligence was roughly half the between-family effect, indicating passive genotype-environment correlation — related