Cognitive Engagement		Behavioral Engagement		Emotional Engagement		Total Engagement		Public Speaking Competence
	Group	Pre	Post	Pre	Post	Pre	Post	Pre	Post	Pre	Post
N	Group 1	25	25	25	25	25	25	25	25	25	25
	Group 2	24	24	24	24	24	24	24	24	24	24
	Group 3	25	25	25	25	25	25	25	25	25	25
	Group 4	24	24	24	24	24	24	24	24	24	24
Mean	Group 1	24	26	21.8	23.4	13.6	14	60.2	63.4	2.73	2.93
	Group 2	25.50	23.3	22.7	22.2	13.8	12.8	62	58.2	3.04	3.11
	Group 3	23.30	24.4	20	22.6	12.4	13.4	55.6	60.3	2.82	3.04
	Group 4	24.40	23.2	20.8	21.5	13.5	12.5	58.6	57.2	2.91	3.22
SD	Group 1	3.22	2.66	3.16	2.94	1.22	1.38	6.19	5.38	0.327	0.42
	Group 2	2.65	2.49	3.34	2.99	1.26	1.26	6.24	5.96	0.243	0.289
	Group 3	2.63	2.43	2.86	2.43	1.8	1.55	6.12	4.31	0.345	0.366
	Group 4	2.53	2.96	3.25	2.83	1.74	2	5.83	6.83	0.281	0.318
Skewness	Group 1	−0.54	−0.677	−0.05	−0.374	−0.473	−1.13	−0.257	−0.452	−0.203	−0.844
	Group 2	0.09	1.18	0.492	0.917	−0.338	0.801	0.477	1.17	−0.81	−1.11
	Group 3	−1.60	−0.174	−0.118	−0.305	0.108	−0.882	−0.327	0.642	0.306	0.676
	Group 4	−0.06	0.293	0.003	0.293	−0.621	−0.267	−0.008	0.237	−0.405	0.325
Kurtosis	Group 1	−0.30	0.799	−0.602	−0.961	−0.892	−0.122	−0.898	−0.016	−0.578	1.48
	Group 2	−0.35	1.23	−0.428	1.24	−1.6	−0.521	−0.656	1.28	0.593	2.36
	Group 3	3.40	−0.644	−0.502	−0.154	−0.416	1.01	−0.367	−0.129	1.53	0.54
	Group 4	−1.27	−0.795	−1.34	0.156	−1.21	−1.15	−1.16	−0.192	−0.63	1.19
N = number; Post = post-test; Pre = pre-test; SD = standard deviation.