The Stanford marshmallow experiment was a study on delayed gratification in 1972 led by psychologist Walter Mischel, a professor at Stanford University.
The test found evidence to the idea that being able to delay gratification leads to better outcomes in life.
However, a new study by Tyler Watts, Greg Duncan and Haonan Quan finds limited support for the idea that being able to delay gratification leads to better outcomes.
Instead, they suggests that the capacity to hold out for a second marshmallow is shaped in large part by a child’s social and economic background.
They found out that that background(socio-economic), not the ability to delay gratification, is what’s behind kids’ long-term success.