The kids having been taught through the crayon experience that they were in either a “reliable” or “unreliable” environment, the researchers then conducted the classic marshmallow test.

In an experiment conducted a number of years ago, a group of four-year-old children were given the following choice: eat a ...

Back in 2021, a test of cephalopod smarts reinforced how important it is for us humans to not underestimate animal intelligence. Cuttlefish were given a new version of the marshmallow test ...