Table 1 The results of choices under the two contract types
Subgroup | Rigid contract | Flexible contract | Total | |||||
|---|---|---|---|---|---|---|---|---|
Median | Quartile | Median | Quartile | Median | Quartile | P | ||
The bidding distribution rate (%) | Undergraduates | 15.00 | 4.75 | 13.50 | 5.50 | 14.25 | 14.25 | |
Postgraduates | 18.25 | 12.00 | 20.50 | 14.00 | 20.00 | 20.00 | ||
Professionals | 25.00 | 16.25 | 24.00 | 5.50 | 24.50 | 24.50 | ||
Total | 17.00 | 12.00 | 20.00 | 13.00 | 18.50 | 18.50 | < 0.001 | |
Observations (%) | 161(33.61) | 318 (66.39) | 479 (100.00) | – | ||||
The final rate (%) | Undergraduates | – | – | 16.00 | 6.00 | – | – | – |
Postgraduates | – | – | 25.00 | 14.00 | – | – | – | |
Professionals | – | – | 28.00 | 6.50 | – | – | – | |
Total | – | – | 23.00 | 14.00 | – | – | < 0.001 | |
The improvement rate (%) | Undergraduates | – | – | 2.00 | 3.25 | – | – | – |
Postgraduates | – | – | 4.00 | 6.00 | – | – | – | |
Professionals | – | – | 3.50 | 6.50 | – | – | – | |
Total | – | – | 3.00 | 4.63 | – | – | 0.01 | |
The effort level | Undergraduates | 10.00 | 2.00 | 10.00 | 1.00 | 10.00 | 1.00 | |
Postgraduates | 8.00 | 4.00 | 8.00 | 3.00 | 8.00 | 3.00 | ||
Professionals | 8.00 | 4.00 | 9.00 | 3.00 | 8.00 | 4.00 | ||
Total | 8.00 | 4.00 | 9.00 | 3.00 | 9.00 | 3.00 | < 0.001 | |