Facts about the Marshmallow Test
- 11
Cognitive strategies mattered greatly: children instructed to imagine marshmallows as fluffy clouds rather than focusing on their taste waited considerably longer before eating them.
- 10
Across multiple replications of the marshmallow test, researchers found that the delay duration children could manage ranged from less than one minute to over fifteen minutes depending on distraction techniques they employed.
- 09
Mischel's original marshmallow test study was not designed to measure self-control but rather to study how children's cognitive abilities developed between ages three and five.
- 08
Preschoolers who successfully waited for the larger reward in Mischel's marshmallow test showed increased activation in their prefrontal cortex during brain imaging studies conducted decades later.
- 07
Children in Mischel's marshmallow test who were told they could ring a bell to call back the experimenter waited significantly longer than those given no such control mechanism.
- 06
Forty years after the original test, Mischel discovered that only 30 percent of the four-year-olds who waited for two marshmallows actually received the larger reward due to experimenter delays.
- 05
Mischel's marshmallow test videos were archived at Stanford and later reanalyzed by researchers who discovered that children's waiting behavior varied dramatically depending on whether they had been promised reliable or unreliable rewards in earlier interactions.
- 04
Subsequent research revealed that preschoolers in the marshmallow test who had experienced unreliable adults in their lives were significantly less likely to wait for the delayed reward.
- 03
Follow-up studies of Mischel's original participants revealed that those who delayed gratification at age four had higher SAT scores and better BMI measurements in their thirties.
- 02
A 2018 replication study of the marshmallow test by researchers at the University of Rochester found that environmental context, not willpower, primarily determined whether children waited for the larger reward.
- 01
In 1972, psychologist Walter Mischel conducted the original marshmallow test at Stanford University with 653 four-year-old children from the Bing Nursery School.