Group | N | Mean | Standard deviation | Standard error mean | Pre-test score | t | df | Sig | Mean difference | Standard error difference | 95% confidence interval of the difference lower upper | |
Traditional group | 45 | 21.3778 | 10.34691 | 1.54243 | Equal variances assumed | −0.019 | 88 | 0.985 | −0.04444 | 2.28826 | −4.59188 | 4.50299 |
Flipped group | 45 | 21.4222 | 11.33877 | 1.69028 | Equal variances not assumed | −0.019 | 87.273 | 0.985 | −0.04444 | 2.28826 | −4.59241 | 4.50352 |