Table 1 Results of the MANOVA on the KIDSCREEN dimensions among Swedish school children, main and interaction effects of by gender and age group (11–12 and 15–16 years), and effect sizes (η ² )

Physical well-being

Gender

1

6.903

0.009

0.027

Age group

1

4.216

0.041

0.017

Gender*Age group

1

5.245

0.023

0.021

MS error

249

98.926

-

-

Psychological well-being

Gender

1

5.285

0.022

0.021

Age group

1

5.454

0.020

0.021

Gender*Age group

1

0.034

0.853

0.000

MS error

249

132.275

-

-

Moods and emotions

Gender

1

16.956

0.000

0.064

Age group

1

0.111

0.740

0.000

Gender*Age group

1

6.993

0.009

0.027

MS error

249

160.651

-

-

Self-perception

Gender

1

12.935

0.000

0.049

Age group

1

9.531

0.002

0.037

Gender*Age group

1

0.040

0.842

0.000

MS error

249

134.202

-

-

Autonomy

Gender

1

5.957

0.015

0.023

Age group

1

22.135

0.000

0.082

Gender*Age group

1

2.802

0.095

0.011

MS error

249

129.195

-

-

Parent relations and home life

Gender

1

0.035

0.853

0.000

Age group

1

1.562

0.213

0.006

Gender*Age group

1

1.545

0.215

0.006

MS error

249

147.530

-

-

Peers and social support

Gender

1

0.085

0.771

0.000

Age group

1

0.354

0.552

0.001

Gender*Age group

1

0.442

0.507

0.002

MS error

249

146.247

-

-

School environment

Gender

1

1.488

0.224

0.006

Age group

1

15.685

0.000

0.059

Gender*Age group

1

0.731

0.393

0.003

MS error

249

125.425

-

-

Social acceptance and bullying

Gender

1

2.176

0.141

0.009

Age group

1

0.477

0.490

0.002

Gender*Age group

1

0.832

0.363

0.003

MS error

249

146.816

-

-

Financial resources

Gender

1

1.947

0.164

0.008

Age group

1

0.005

0.944

0.000

Gender*Age group

1

0.021

0.885

0.000

MS error

249

99.922