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| Group | Mean difference | Student independent t-test | ||||
| Experimental (n=35) | Control (n=35) | |||||
| Mean | SD | Mean | SD | |||
| Pre-test | 6.6 | 0.69 | 6.63 | 0.84 | 0.03 | t=0.16 p=0.88(NS) |
| Post-test | 7.66 | 0.48 | 6.8 | 0.8 | 0.86 | t=5.44 p=0.001***(S) |
