Table 2.
Groups | Number | Mean | SD | Mean Difference | df | T-test | P | ||
---|---|---|---|---|---|---|---|---|---|
Video cast | Knowledge | Before | 30 | 9.1667 | 1.74363 | −4.9333 | 29 | −14.561 | 0.001 |
After | 30 | 14.1000 | 0.99481 | ||||||
Performance | Before | 30 | 9.5333 | 2.64879 | −7.3667 | 29 | −14.236 | 0.001 | |
After | 30 | 16.9000 | 1.15520 | ||||||
Lecture | Knowledge | Before | 30 | 9.0667 | 1.72073 | −5.4333 | 29 | −14.200 | 0.001 |
After | 30 | 14.5000 | 0.82001 | ||||||
Performance | Before | 30 | 9.5667 | 2.41666 | −8.0000 | 29 | −16.855 | 0.001 | |
After | 30 | 17.5667 | 1.83234 |