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

Table 3

Results of paired-sample t-test for accuracy, fluency, and lexical complexity of the students taught by the native teacher.

	N	M	Standard deviation	Standard error mean	t	df	Sig.
Accuracy pretest–accuracy posttest	15	83.93	7.90	5.04	0.986	14	0.341
		80.80	5.77	1.49
Fluency pretest–fluency posttest	15	79.53	8.26	2.13	4.719	14	0.000
		86.53	5.47	1.41
Lexical complexity pretest–lexical complexity posttest	15	69.66	8.60	2.22	3.267	14	0.006
		77.06	4.04	1.04