Variables | Gender | Grade | Major | Family economic status | Psychological capital | Study engagement | Positive emotion |
M | 1.71 | 2.11 | 2.2 | 3.93 | 3.56 | 3.14 | 3.44 |
SD | 0.46 | 0.87 | 1.42 | 1.12 | 0.81 | 0.72 | 0.81 |