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Table 10 Comparative analysis of the mean level of progress in grammar and vocabulary (post-treatment)

From: Enhancing students’ written production in English through flipped lessons and simulations

Overall score (post-treatment) Grammar and vocabulary N Levene’s Test Student’s t test
f sig. t Overall Sig. (bilateral) Mean diff. Std. error of diff. 95% CI
Lower Upper
Experimental 50 .044 .835 8.172 119.000 .000 .302 .037 .229 .044
Control 71 7.988 96.633 .000 .302 .037 .227 .197