卓越實證概述 Best Evidence in Brief

Results of a large randomized controlled trial of growth mindset

A randomized controlled trial published in the journal Nature has found that a short, online, self-administered growth mindset intervention may improve achievement among lower-achieving students and increase overall enrollment in advanced math courses. The study, conducted by David S. Yeager and colleagues, was the largest ever randomized controlled trial of growth mindset in U.S. schools, with 12,000 ninth graders in 65 schools involved.

Students were individually randomized to either a control or intervention group. The intervention group was asked to complete two 25-minute online courses, taken three weeks apart. Students were given information about how the brain works and the latest research on growth mindset, then they completed activities such as explaining what they had learned from the course to students in the year below. Students in the control group were given a similar program with information on how the brain worked, but no information on growth mindset.

Following the intervention, students’ grade point average (GPA) in their core classes of math, science, English, and social studies, were collected. The study found that:

  • GPA scores for lower-achieving students in the intervention group rose by 0.1 point relative to peers in the control group (ES= +0.11).
  • The proportion of lower-achieving students with D or F averages dropped by 5%.
  • Both higher- and lower-achieving students were more likely to take an advanced math class in 10th grade – meaning enrollment in these courses rose from 33% to 36% in the 41 schools that shared this data.

The authors suggested that the present research showed that’ growth mindset intervention could improve academic outcomes.

 

Source (Open Access): Yeager, D. S., Hanselman, P., Walton, G. M., Murray, J. S., Crosnoe, R., Muller, C., … Dweck, C. S. (2019). A national experiment reveals where a growth mindset improves achievement. Nature. Doi.: 10.1038/s41586-019-1466-y

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