Table 4. Descriptive analysis of the focus groups and interviews with students.

Classification tree	C Group		E Group
	N Cod.	% Cod.	N Cod.	% Cod.
1. Applicability	29	18.01	34	20.00
1.1. General design	29	18.01	34	20.00
1.1.1. Changes	11	6.83	16	9.41
1.1.2. Strengths	17	10.56	18	10.59
2. Utility	119	73.91	126	74.12
2.1. General design	119	73.91	115	67.65
2.1.1. Enjoyment	22	13.66	21	12.35
2.1.2. Learning	37	22.98	25	14.71
2.1.3. Academic performance	27	16.77	30	17.65
2.1.4. Perceived physical effort	10	6.21	9	5.29
2.1.5. Usage expectations	1	0.62	11	6.47
2.1.6. Promoting PE	10	6.21	10	5.88
2.1.7. Resolving conflicts	12	7.45	9	5.29
2.2. Gamification	0	0.00	11	6.47
2.2.1. Advantages	0	0.00	9	5.29
2.2.2. Disadvantages	0	0.00	2	1.18
3. Miscellany	14	8.70	7	4.12
3.1. Researcher contributions	12	7.45	7	4.12
3.2. Irrelevant information for this study	2	1.24	3	1.76

“N Cod.” = number of times that the variable was encoded. “% Cod.” = percentage of the total encoded references.