Table 3

Perceived effort, satisfaction, useful time, time available and the useful time/time available ratio for each age group

G1G2G3G4G5G6Diff. between groups
Perceived effort3.08
±
2.46		2.91
±
2.19		4.15
±
3.19		1.77
±
1.42		1.45
±
1.82		1.17
±
1.31		G1 and G2**, G3**, G4**, G5**, G6**
G2 and G3**, G4**, G5**, G6**
G3 and G4**, G5**, G6**
Satisfaction3.57
±
2.90		4.00
±
2.28		2.86
±
3.32		3.20
±
2.80		2.78
±
3.27		3.98
±
1.33		G2 and G3*, G5*
G5 and G6*
Useful time
(min/session)		57.33
±
0.47		49.11
±
17.16		54.03
±
7.23		49.06
±
6.38		50.06
±
13.33		57.50
±
3.37		G1 and G2**, G4**, G5**
G2 and G6**
G4 and G6**
G5 and G6**
Time available
(min/session)		26.55
±
4.02		21.36
±
6.37		25.25
±
3.48		21.38
±
13.35		33.06
±
5.30		35.02
±
2.48		G1 and G2**, G4**, G5**, G6**
G2 and G3**, G5**, G6**
G3 and G4**, G5**, G6**
G4 and G5**, G6**
Useful time/time
available ratio		2.21
±
0.36		2.25
±
0.39		2.13
±
0.12		2.20
±
0.18		1.49
±
0.25		1.62
±
0.13		G1 and G5**, G6**
G2 and G5**, G6**
G3 and G5**, G6**
G4 and G5**, G6**
Note. G1-6: group based on school year.
*p <.05; **p <.01, significant differences between years.
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