GPAΔ is strikingly highly heritable (85%), exceeding the heritability of achievement itself (67%)¶

Claim · All claims
Evidence · 1 study · associational r3 · q3
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Twin-model heritability of GPAΔ at age 7 is 85%, higher than general achievement (67%), mathematics GPAΔ (87%), and English GPAΔ (85%). → Kaito Kawakami 2024

Evidence¶

Kaito Kawakami 2024¶

Kaito Kawakami, Francesca Procopio, Kaili Rimfeld, Margherita Malanchini, Sophie von Stumm, Kathryn Asbury, Robert Plomin. (2024). Exploring the genetic prediction of academic underachievement and overachievement. npj Science of Learning. https://doi.org/10.1038/s41539-024-00251-9

q3 · i? · associational · r3

Univariate twin model-fitting (OpenMx) in the TEDS twin sample estimated ACE variance components for GPAΔ and related traits (Fig. 2). The article reports heritability is "strikingly high for GPA Δ (85%)," above achievement's 67%; mathematics and English GPAΔ were 87% and 85%.

"Heritability, the proportion of phenotypic variance explained by genetic variance, is strikingly high for GPA Δ (85%), higher than for general achievement itself at age 7 (67%)."

Discussion¶

Related Claims¶

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