The Marshmallow Test got its name from an experiment at Stanford University in the 1960s on 4-year-old nursery school pupils. Researchers told children that they could have one thing they really wanted right away – a marshmallow, or a candy or a cookie, for example – but if they could wait while the researcher left the room and came back about 15 minutes later, they could have two. It was designed to test self-control. The researchers, led by psychologist Walter Mischel, found only about 30 per cent of more than 600 children tested could hold out. That's as far as it went until the early 1980s, when Mischel followed up and discovered the children who had been able to wait for two marshmallows were also doing better academically. [ Continue ] I think wanting two fat laden sugary snacks instead one is a predictor of future obesity, not academic ability.