The Impact of a Contrastive Lexical Approach in Formulaic Expressions’ Perception on University EFL Learners’ Writing Proficiencies

Table 7

Paired Samples t-test of the experimental group (pretest Vs. posttest).

		Paired differences
Mean	Std. deviation	Std. error	95% confidence interval of the difference		t	df	Sig.
Pretest and posttest		Mean	Lower	Upper
−10.30	1.423	0 .231	−18.166	−20.265	−73.848	22	.000