A step toward effective language learning: an insight into the impacts of feedback-supported tasks and peer-work activities on learners’ engagement, self-esteem, and language growth

Table 5 Independent Samples Test on the Posttest

	Levene’s test for equality of variances		t-test for equality of means
	F	Sig	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	95% confidence interval of the difference
	F	Sig	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	Lower	Upper
Posttest scores
Equal variances assumed	40.704	.000	8.214	86	.000	6.481	.789	4.912	8.049
Equal variances not assumed			8.361	55.655	.000	6.481	.775	4.928	8.034