Fig. 3.

Practice with growth mindsets by experimental conditions (Study 2). The left panel shows the total time spent on practice, and the right panel shows the total number of practice trials attempted. Black lines represent high-mobility environments, and gray lines represent low-mobility environments. Dashed lines represent lower-track conditions, and solid lines represent upper-track conditions. The main analysis was conducted on the computed average of the standardized values of total time and trials attempted. Analyses on the two separate indices yielded the same pattern of results. ***P < 0.001.