Table 3 Summary statistics of SQL-Tutor usage for experimental and control groups: mean (Sd)
From: Investigating the causal relationships between badges and learning outcomes in SQL-Tutor
| Â | Experimental (42) | Control (35) |
|---|---|---|
Pretest % | 59.52 (24.02) | 57.78 (28.62) |
Time-on-task (min) | 288.40 (302.02) | 225.94 (143.44) |
Sessions | 7.29 (7.84) | 6.11 (4.49) |
Active days | 3.33 (3.09) | 3.46 (2.13) |
Attempted problems | 42.26 (42.75) | 37.34 (26.94) |
Solved problems | 39.33(40.99) | 35.23 (25.72) |
Max problem complexity | 6.95 (1.78) | 6.71 (2.02) |
Student level | 3.31 (1.62) | 3.86 (1.68) |
Posttest % | n = 17, 67.97 (26.32) | n = 11, 70.71 (26.42) |
Laboratory test % | 60.43 (16.49) | 61.31 (17.97) |