The Marshmallow test

The original marshmallow test was conducted by Stanford psychology professor Walter Mischel 40 years ago. The test was meant to measure which children could delay gratification. Follow up studies showed that children who could postpone eating a marshmallow at age 4 outpaced their peers in many areas when they were 18 years old: They scored 210 points higher in the SAT and had higher confidence, concentration, and reliability. This simple test proved to be twice as predictive of later SAT scores as IQ test