grade (age group)

gender

12 - 13

13 - 14

14 - 15

Male

Female

Mean

S.D.

Mean

S.D.

Mean

S.D.

Mean

S.D.

Mean

S.D.

ICT self-concept

−0.132a

0.956

0.090a

0.928

0.101a

0.831

0.150a

0.908

−0.189b

0.903

social exposure to ICT

−0.052a

0.864

−0.015a

0.875

0.102a

1.057

0.278a

0.910

−0.349b

0.809

Interest in computers

0.084a

0.797

−0.155a

0.993

0.055a

0.905

−0.005a

0.906

0.006a

0.883

Interest in mobile devices

0.078a

0.837

−0.192a

1.123

0.111a

0.774

−0.026a

0.946

0.033a

0.912