Effects of different text difficulty levels on Iranian EFL learners’ foreign language Reading motivation and Reading comprehension

Table 7 Independent Samples t-test (Questionnaire of Both Groups before and after the Treatment)

		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
before the Treatment	Equal variances assumed	.113	.738	−.20	38	.836	−.40	1.91	−4.280	3.48
before the Treatment	Equal variances not assumed			−.20	37.74	.836	−.40	1.91	−4.280	3.48
after the Treatment	Equal variances assumed	17.93	.000	−11.56	38	.000	−46.20	3.99	−54.28	−38.11
after the Treatment	Equal variances not assumed			−11.56	25.13	.000	−46.20	3.99	−54.42	−37.97