More than general intelligence: Cognitive abilities and class structure
Intelligence & Cognitive Abilities. Published online July 1, 2026.
Peer-reviewed work & preprints
Publications
2026
Higher quality parent-offspring relationships predict lower-risk adolescent sexual behavior: A genetically informed sibling comparison
Journal of Adolescent Health. Advance online publication.
Durable lessons on intelligence from twin and adoption research
Behavior Genetics. Published online May 20, 2026.
2025
A genetic common factor underlying self-reported math ability and highest math class taken
Molecular Psychiatry, 30(12), 5701–5709.
The freedom to believe in free will: Evidence from an adoption study against the first law of behavioral genetics
Philosophical Psychology, 1–25.
Multi-ancestral genome-wide association study of clinically defined nicotine dependence reveals strong genetic correlations with other substance use disorders and health-related traits
Psychological Medicine, 55, e234.
Intelligence and individual differences in astrological belief
Journal of Individual Differences, 46(1), 50–57.
More than g: Verbal and performance IQ as predictors of socio-political attitudes
Intelligence, 108, 101876.
2024
Natural selection across three generations of Americans
Behavior Genetics, 54(5), 405–415.
Predicting political beliefs with polygenic scores for cognitive performance and educational attainment
Intelligence, 104, 101831.
Preprints
Effort Matters: A Commentary on “Is Trying Harder Enough?”
Edwards, T.
Preprint ↗Robust inference and widespread genetic correlates from a large-scale genetic association study of human personality
Schwaba, T., et al.
Preprint ↗