[ mahrsh-mel-oh, -mal-oh ]
/ ˈmɑrʃˌmɛl oʊ, -ˌmæl oʊ /
Save This Word!

a sweetened paste or confection made from the mucilaginous root of the marsh mallow.
a similar confection, usually soft and spongy, made from gum arabic or gelatin, sugar, corn syrup, and flavoring.
Hold your head up high as you embark on this quiz that explores some of the synonyms and meanings of “pride.”
Question 1 of 7
What does "dignity" mean?

Origin of marshmallow

First recorded in 1905–10; see origin at marsh mallow

OTHER WORDS FROM marshmallow

marsh·mal·low·y, adjective

Other definitions for marshmallow (2 of 2)

marsh mallow

an Old World mallow, Althaea officinalis, having pink flowers, found in marshy places.
the rose mallow, Hibiscus moscheutos.

Origin of marsh mallow

before 1000; Middle English marshmalue,Old English merscmealwe.See marsh, mallow
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What is the Marshmallow Test?

The Marshmallow Test is a famous psychological test performed on young children in the 1960s linking delayed gratification (a treat right now … or two later?) to success later in life.

A 2018 replication notably concluded, though, that socioeconomic background significantly influenced the ability of children to delay their gratification. So the test was biased.

Where did the Marshmallow Test come from?

The Marshmallow Test was first administered by psychologist Walter Mischel at Stanford University’s Bing Nursery School in 1960. To study the development of self-control and patience in young children, Mischel devised an experiment, “Attention in Delay of Gratification,” popularly called the Marshmallow Test by the 1990s.

The test placed a choice before children. They could eat a treat—often in the form of a marshmallow but also a pretzel or cookie—before them right away or get two treats if they waited 15 minutes, during which time the experimenter would leave the room and observe.

Some kids ate the marshmallow right away, others couldn’t make it the full waiting period, and about a third earned that second treat. The study showed children hiding their faces, squirming, or engaging in make-believe to help them cope with the temptation.

The Marshmallow Test gained greater recognition after Mischel followed up on his subjects in the 1980–90s, where he found that children who earned the second treat scored significantly higher on their SATs than their counterparts and avoided problems like drug addiction and jail time at greater rates.

Mischel wrote up his research for general audiences in his 2014 book Marshmallow Test, which championed self-control as the key to success.

Sound too good to be true?

Well, in a study published in 2018, researchers Tyler Watts, Greg Duncan, and Hoanan Quan replicated the Marshmallow Test. They found a strong correlation between a child’s socioeconomic status and their early ability to resist the marshmallow.

Their results suggest that the original experiment failed to take into account outside factors such as family background and home environment, with poorer children perhaps less motivated to wait due to the uncertainties and challenges of their everyday lives.

How to use the term Marshmallow Test

The Marshmallow Test comes up in discussions of popular psychology and economics, such as on Freakonomics or in high school or college courses. Sometimes, it’s the subject of humorous observations about adult temptations.

Since 2018, the Marshmallow Test has come under scrutiny for the overpromises or oversights of experiments in social science, including the so-called “replication crisis,” where the results of major and influential studies have been found impossible to replicate.

More examples of marshmallow test:

“The study, published this week in the journal Developmental Psychology, resurrected an experiment that’s become a developmental psychology classic: the so-called marshmallow test.”
—Melissa Healey, The Los Angeles Times, June 2018


This content is not meant to be a formal definition of this term. Rather, it is an informal summary that seeks to provide supplemental information and context important to know or keep in mind about the term’s history, meaning, and usage.

How to use marshmallow in a sentence

British Dictionary definitions for marshmallow (1 of 2)

/ (ˌmɑːʃˈmæləʊ) /

a sweet of a spongy texture containing gum arabic or gelatine, sugar, etc
a sweetened paste or confection made from the root of the marsh mallow

Derived forms of marshmallow

marshmallowy, adjective

British Dictionary definitions for marshmallow (2 of 2)

marsh mallow

a malvaceous plant, Althaea officinalis, that grows in salt marshes and has pale pink flowers. The roots yield a mucilage formerly used to make marshmallows
US and Canadian another name for rose mallow (def. 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012