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Psychological differences among different groups of students.
| Indicator | Experimental group | Control group |
| Average value | 0.625625 | 0.030625 |
| Variance | 0.010186 | 0.000153 |
| Observed value | 16 | 16 |
| Df | 15 | 15 |
| F | 66.61308 | 0 |
| P (F ≤ f) Single-tailed test | 0 | 0 |
| F Single-tailed critical value | 2.403447 | 0 |
