Exploring the Effectiveness of Native and Non-Native English Teachers on EFL Learners’ Accuracy, Fluency, and Complexity in Speaking

Table 2

Independent sample t-tests for accuracy, fluency, and lexical complexity on the posttest.

	Class taught by	N	M	Standard deviation	Standard error mean	t	df	Sig.
Accuracy posttest	NT	15	80.80	5.77	1.49	5.569	28	0.000
	NNT	15	90.93	4.04	1.04
Fluency posttest	NT	15	86.53	5.47	1.41	5.638	28	0.000
	NNT	15	73.33	7.22	1.86
Lexical complexity posttest	NT	15	77.06	4.04	1.04	0.609	28	0.547
	NNT	15	75.33	10.25	2.64