During the past decade, polygenic scores have become a fast-growing area of research in
the behavioural sciences. The ability to directly assess people's genetic propensities has …

The field of human behavioral genetics has come full circle. It began by using twin/family
studies to estimate the relative importance of genetic and environmental influences. As large …

We conduct a genome-wide association study (GWAS) of educational attainment (EA) in a
sample of~ 3 million individuals and identify 3,952 approximately uncorrelated genome …

Estimates from genome-wide association studies (GWAS) of unrelated individuals capture
effects of inherited variation (direct effects), demography (population stratification …

Abstract Effects estimated by genome-wide association studies (GWASs) include effects of
alleles in an individual on that individual (direct genetic effects), indirect genetic effects (for …

Assortative mating on heritable traits can have implications for the genetic resemblance
between siblings and in-laws in succeeding generations. We studied polygenic scores and …

Estimates from genome-wide association studies (GWAS) represent a combination of the
effect of inherited genetic variation (direct effects), demography (population stratification …

The set of methods discussed in this collection has emerged from the convergence of two
scientific fields—genetics and causal inference. In this introduction, we discuss relevant …

Addictions are heritable and unfold dynamically across the lifespan. One prominent
neurobiological theory proposes that substance-induced changes in neural circuitry promote …

In the classical twin design, researchers compare trait resemblance in cohorts of identical
and non-identical twins to understand how genetic and environmental factors correlate with …