Stanford marshmallow experiment

Stanford Marshmallow Experiment

Marshmallows, the treat used in the experiment

The Stanford marshmallow experiment was a series of studies on delayed gratification in the late 1960s and early 1970s led by psychologist Walter Mischel, then a professor at Stanford University. The experiment was designed to understand the processes involved in delayed gratification and how it might relate to future success.

Methodology

The experiment involved children aged 4 to 6 years old who were given a choice between one small reward provided immediately or two small rewards if they waited for a short period, approximately 15 minutes, during which the tester left the room and then returned. The reward was often a marshmallow, but sometimes a cookie or pretzel was used.

Procedure

Children were individually seated at a table in a room with a single marshmallow placed in front of them. The experimenter told the child that they could eat the marshmallow immediately, but if they waited until the experimenter returned, they would receive a second marshmallow. The experimenter then left the room for about 15 minutes and observed the child’s behavior through a one-way mirror.

Results

The results of the experiment showed that children who were able to wait longer for the preferred rewards tended to have better life outcomes as measured by various life measures, including SAT scores, educational attainment, and other life measures. This suggested that the ability to delay gratification was an important predictor of future success.

Implications

The Stanford marshmallow experiment has been widely cited in both popular and academic literature as an example of the importance of self-control and delayed gratification. It has influenced research in psychology, education, and economics, and has been used to support the idea that self-control can be a critical factor in achieving personal and professional goals.

Criticisms

Some critics have argued that the experiment's findings may not be as robust as initially thought. Subsequent studies have suggested that the ability to delay gratification is influenced by a variety of factors, including the child’s social and economic background, and that the original study may not have adequately accounted for these variables.

Related pages

• Walter Mischel
• Delayed gratification
• Self-control
• Psychology