Parsing spatial ability

A series of diverse online tests that measured spatial ability—the capacity to perceive and manipulate the physical environment—in 1,367 twin pairs, ages 19-21, from the Twins Early Development Study suggests that spatial ability is a single trait driven by the same genetic and environmental factors, as opposed to reflecting distinct traits such as mental rotation, scanning, and mechanical reasoning, findings suggesting that spatial ability may be a simpler trait than previously suggested. - Read at PNAS

Article #16-07883: “Phenotypic and genetic evidence for a unifactorial structure of spatial abilities,” by Kaili Rimfeld et al.