No. | Pretest | Posttest | difference |
1 | 59 | 70 | 11 |
2 | 91 | 91 | 0 |
3 | 64 | 65 | 10 |
4 | 60 | 65 | 9 |
5 | 49 | 55 | 8 |
6 | 73 | 74 | 7 |
7 | 81 | 83 | 6 |
8 | 89 | 89 | 5 |
9 | 61 | 64 | 82 |
10 | 75 | 79 | 4 |
11 | 73 | 74 | 3 |
12 | 63 | 65 | 2 |
Average | 69.83 | 72.83 | 3 |
St. deviation | 12.77 | 10.97 | 3.16 |