Table 3 Independent samples test
|  | Levene’s test for equality of variances | t test for equality of means | |||||||
|---|---|---|---|---|---|---|---|---|---|
F | Sig. | t | df | Sig. (2-tailed) | Mean difference | Std. error difference | 95% confidence interval of the difference | ||
Lower | Upper | ||||||||
Pre-test score | |||||||||
 Equal variances assumed | 2.77 | .10 | .14 | 35 | .88 | .10 | .70 | 1.31 | 1.52 |
 Equal variances not assumed |  |  | .15 | 33.83 | .88 | .10 | .68 | 1.27 | 1.48 |
Post-test score | |||||||||
 Equal variances assumed | 7.74 | .12 | 4.03 | 35 | .00 | 5.02 | 1.24 | 2.50 | 7.55 |
 Equal variances not assumed |  |  | 4.24 | 29.00 | .00 | 5.02 | 1.18 | 2.60 | 7.45 |