Girls, GPA < 8.6

Girls, GPA ≥ 8.6

Difference

Boys, GPA < 8.6

Boys, GPA ≥ 8.6

Difference

n

M

SD

n

M

SD

t

p

n

M

SD

n

M

S

t

p

Global happiness

127

4.80

1.04

55

5.36

0.95

−3.42

< 0.001

26

5.09

0.98

31

4.87

0.96

1.13

n.s.

SCHI

127

2.93

0.53

55

3.29

0.49

−4.25

< 0.05

26

3.18

0.50

31

3.07

0.55

1.06

n.s.