The results indicate that the experimental and control groups are statistically different in the post-test (p< .05). Also, the mean score of the experimental group is 18.4 while for the control group this score is equal to 13.2. Hence, it can be concluded that the experimental group, i.e. the group which produced output and was given feedback outperformed the group which received comprehensible input only. As a result, our second hypothesis is supported statistically.