Forbes contributors publish independent expert analyses and insights. Mark Travers writes about the world of psychology. For decades, intelligence has been often reduced to a number — an IQ score, a ...

Ask yourself these questions if you want to truly test your intelligence—science says they're better than IQ tests.

People with higher reasoning skills appear to be better at forming internal maps of how different objects are related in space, according to a study published in Cell Reports. The research provides ...