Heritability estimates are population-specific parameters, and the heritability of cognitive skills rises gradually through childhood and adolescence¶

Claim · All claims
Evidence · 1 study (2 entries) · review r2 · q2
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Heritabilities are population-specific parameters, not universal constants, and can vary across time, space, and the lifecycle. → David Cesarini and Peter M. Visscher 2017 q2 i? The heritability of cognitive skills rises gradually through childhood and adolescence, one of the most robustly replicated behavior-genetic findings. → David Cesarini and Peter M. Visscher 2017 (2)

Evidence¶

David Cesarini and Peter M. Visscher 2017¶

David Cesarini and Peter M. Visscher. (2017). Genetics and educational attainment. npj Science of Learning 2:4. https://doi.org/10.1038/s41539-017-0005-6

q2 · i? · review · r2

Interpretive statement accompanying the Swedish sibling correlations in Fig. 1: heritabilities "are population-speci fic parameters (not universal constants)" that can vary across time, space, and the lifecycle.

"Though the data in Fig. 1 are quite representative of findings in the behavior –genetic literature, it bears emphasizing that heritabilities are population-speci fic parameters (not universal constants)."

David Cesarini and Peter M. Visscher 2017 (2)¶

David Cesarini and Peter M. Visscher. (2017). Genetics and educational attainment. npj Science of Learning 2:4. https://doi.org/10.1038/s41539-017-0005-6

q2 · i? · review · r2

Review of behavior-genetic findings: "the heritability of cognitive skills rises gradually through childhood and adolescence", which the article calls one of the most robustly replicated findings in that literature.

"For example, one of the most robustly replicated findings from the behavior –genetic literature is that the heritability of cognitive skills rises gradually through childhood and adolescence."

Discussion¶

Related Claims¶

• Twin and adoption studies suggest that 50–80% of IQ variation is due to genetic differences, with the range reflecting population heritability — related
• Reading fluency, spelling, phonemic awareness, listening comprehension and non-word repetition are moderately heritable (SNP-h2 30–50%) in unrelated youth — related
• Environmental factors such as social support modulate classic individual-difference findings, including delay of gratification and heritability estimates — related
• GPAΔ is strikingly highly heritable (85%), exceeding the heritability of achievement itself (67%) — related
• The best-fitting NTFD model estimates heritability of educational attainment at 51% and total shared environmental influence at 26%, disaggregated into twin-specific (16%) and sibling-shared (10%) components — related
• Educational achievement is highly heritable, and the common environmental variance is attributable to SES effects — related
• Twin-specific shared environments account for a substantial portion of CTD shared-environment estimates for educational attainment and cannot be interpreted as between-family environmental differences — related
• A Classical Twin Design model of educational attainment in the TwinLife sample estimates shared environmental influence at 43% and additive genetic influence at 34% — related