When we look at the groups tab in the table above, we see that the groups show significant differences when the pre-test scores are checked in terms of the final test scores. (p=0,001<0,.05). When we look at the effect value, we see that the effect value is 0.36. This shows us a moderate effect (Cohen, 1988). This value also shows that 36% of the change in the dependent variable is explained by the independent variable. Independent variable in here is game based english education which is given by teacher. The table above also shows that there is a significant relationship between covariant (pre-test) and dependent variable (post-test) when the groups are checked. When the effect value is examined, it is seen that covariant explains 94% of the change in the dependent variable