Spatial ability is a bit of a fuzzy concept. There are lots of different tests that can be used to assess it, like mentally rotating a 3D shape or reasoning out how a mechanical object would work. Are ...

Ninety years ago, Stanford psychologist Lewis Terman began an ambitious search for the brightest kids in California, administering IQ tests to several thousand of children across the state. Those ...

Diagnostic ultrasounds are the most widely used medical tests in the world. Though the technology is more than 50 years old, scientists continue to discover new uses for it, ranging from more targeted ...