Table 4

Intersession coefficient of variation (CV) for all students and for each age group

	All	G1	G2	G3	G4	G5	G6
Perceived effort (%)	0.28	0.23	0.12	0.32	0.61	0.95	0.18
Satisfaction (%)	0.09	0.14	0.15	0.20	0.20	0.58	0.10
Time available (%)	0.15	0.01	0.42	0.24	0.14	0.32	0.05
Useful time (%)	0.10	0.17	0.36	0.22	0.20	0.18	0.38
Time available/useful time ratio (%)	0.09	0.19	0.21	0.05	0.09	0.20	0.09
Note. G1-6: group based on school year.