Table 4. Post-test results.

	Group	Mean	SD	Skewness	Kurtosis	Std. Error mean
Task completed	Intervention group	15.80	3.014	0.298	−0.933	0.60
	Control group	12.24	1.786	0.704	−0.246	0.357
Task score	Intervention group	143.72	29.365	0.682	−0.459	5.873
	Control group	103.16	15.367	1.152	1.576	3.073
Code quality	Intervention group	71.04	15.380	0.032	−0.963	3.076
	Control group	53.32	10.535	1.152	1.075	2.107
Timeliness of task	Intervention group	13.84	3.436	0.375	−1.250	0.687
	Control group	8.80	1.354	0.066	−1.101	0.271
New course	Intervention group	3.84	1.724	−0.527	−1.024	0.820
	Control group	1.28	0.980	0.245	−0.842	1.578
Average score in team tasks	Intervention group	64.14	4.099	−0.393	−0.620	0.345
	Control group	52.46	7.890	−1.173	0.784	0.196