When children take the marshmallow test to see if they can delay gratification, having a partner who promises to go the distance helps them do better. In some ways, the experiment replicates buddy ...

You’ve probably heard of the infamous “marshmallow test,” in which young children are asked to wait to eat a yummy marshmallow placed in front of them while left alone in a room for 10 to 15 minutes.

In this research, the seminal Marshmallow Experiment paper everyone’s heard about, study authors looked at the relationship between the ability to wait longer to take a desired treat—one marshmallow ...