Table 1.
Variable | Mean | SD | Range | Skewness | Kurtosis |
---|---|---|---|---|---|
Age | 18.48 | 0.54 | 16–20 | 0.50 | 1.71 |
Total GMV | 0.67 | 0.59 | 0.53–0.82 | 0.12 | −0.45 |
Grit | 25.54 | 4.42 | 14–38 | 0.14 | −0.52 |
Growth mindset | 9.98 | 2.71 | 3–18 | 0.08 | −0.09 |
General intelligence | 24.18 | 5.68 | 6–36 | −0.26 | −0.09 |
Self‐control | 38.14 | 6.62 | 19–56 | 0.26 | 0.12 |
Delayed gratification (lnk) | −4.25 | 1.34 | −8.75 to −1.39 | −0.54 | 0.50 |
Note. Abbreviations: GMV = gray matter volume; N = number; SD = standard deviation.