Table 5 Independent T test results of the control and experimental groups’ averages.

From: What difference does one course make? Assessing the impact of content-based instruction on students’ sustainability literacy

			Pretest					Posttest
		n	Min	Max	Med	Ort	SS	Min	Max	Med	Ort	SS
Skills	Control	121	1.00	5.00	3.25	3.24	0.82	1.00	5.00	3.25	3.17	0.93
	Experimental	100	1.75	5.00	3.50	3.49	0.68	1.00	5.00	3.75	3.74	0.75
	Test value		−2.370**					−4.409^a
	p		0.019*					0.000*
Attitudes	Control	121	2.00	5.00	3.75	3.66	0.59	1.00	5.00	3.50	3.56	0.80
	Experimental	100	1.00	5.00	3.75	3.66	0.68	1.50	5.00	3.75	3.79	0.67
	Test value		−0.040**					−2.105^a
	p		0.968					0.037*
Topics & Concepts	Control	121	1.00	5.00	3.06	3.08	0.78	1.00	5.00	3.12	3.11	1.01
	Experimental	100	1.12	5.00	3.12	3.12	0.71	1.00	5.00	3.56	3.55	0.71
	Test value		−0.365**					−3.272^a
	p		0.716					0.001*

*p < 0.05,
^aIndependent t test.
Bold values emphasize the significant difference for p value.

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