People often pick between things that have many different features. This could be anything from choosing a place to live to deciding on a movie to watch. But how well do we understand the thinking that goes into these choices? This is what some researchers set out to explore. They came up with a way to measure how aware people are of their own decision-making proces...

How do kids and adults decide what's best? Do they just go with the crowd? Or do they think for themselves? It turns out, the answer depends on age. Kids aged 3 to 5 from the US and Canada, along with adults from the US, were asked to pick between two boxes. Each box had a group of people saying it was the better choice. The twist? Some groups had seen the...