Group | N | Mean | Standard deviation | Standard error mean | Post-test score | t | df | Sig | Mean difference | Standard error difference | 95% confidence interval of the difference lower upper | |
Traditional group | 45 | 19.4667 | 7.05047 | 1.05047 | Equal variances assumed | −3.260 | 88 | 0.002 | −5.75556 | 1.76541 | −9.26393 | −2.24718 |
Flipped group | 45 | 25.2222 | 25.2222 | 9.51527 | Equal variances not assumed | −3.260 | 87.273 | 0. 002 | −5.75556 | 1.76541 | −9.26808 | −2.24303 |