Textbook | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | Mean | SD |
Volume 3 | 59.10 | 53.03 | 44.97 | 56.32 | 68.32 | 66.75 | 51.33 | 46.99 | 55.85 | 8.54 |
Volume 4 | 54.99 | 62.35 | 33.05 | 45.12 | 49.88 | 67.42 | 55.06 | 40.28 | 51.02 | 11.36 |