Table 3.

Independent samples t-test of pre-test between and control experimental groups.

Variable	Group	n	M	SD	Levene’s test		t-test
					F	sig	t	df	p	Cohen’s d
MLSE	CG	20	5.45	0.92	2.25	0.14	−0.71	38	0.482	0.18
	EG	20	5.20	1.28
MPSE	CG	20	4.72	1.11	1.91	0.18	0.39	38	0.701	−0.12
	EG	20	4.88	1.50
Performance	CG	20	84.7	1.56	0.84	0.37	0.96	38	0.342	−0.30
	EG	20	85.25	2.02