Table 4 Confirmatory factor analysis of the Kidscreen-27

Cov. (Physical well-being, Psychological well-being)

0.67

Cov. (Physical well-being, Autonomy & parents)

0.48

Cov. (Physical well-being, Social support & peers)

0.51

Cov. (Physical well-being, School environment)

0.56

Cov. (Psychological well-being, Autonomy & parents)

0.72

Cov. (Psychological well-being, Social support & peers)

0.74

Cov. (Psychological well-being, School environment)

0.80

Cov. (Autonomy & parents, Social support & peers)

0.63

Cov. (Autonomy & parents, School environment)

0.64

Cov. (Social support & peers, School environment)

0.66

Physical well-being

 1. In general, how would you say your health is?

0.55

 2. Have you felt fit and well?

0.74

 3. Have you been physically active (e. g. running, climbing, biking)?

0.64

 4. Have you been able to run well?

0.70

 5. Have you felt full of energy?

0.70

Psychological well-being

 1. Has your life been enjoyable?

0.74

 2. Have you been in a good mood?

0.71

 3. Have you had fun?

0.73

 4. Have you felt sad?

0.47

 5. Have you felt so bad that you didn’t want to do anything?

0.48

 6. Have you felt lonely?

0.53

 7. Have you been happy with the way you are?

0.61

Cov. error terms (item 4, 5)

0.27

Cov. error terms (item 4, 6)

0.23

Cov. error terms (item 5, 6)

0.24

Autonomy & parents

 1. Have you had enough time for yourself?

0.48

 2. Have you been able to do the things that you want to do in your free time?

0.68

 3. Have your parent(s) had enough time for you?

0.71

 4. Have your parent(s) treated you fairly?

0.61

 5. Have you been able talk to your parent(s) when you wanted to?

0.65

 6. Have you had enough money to do the same things as your friends?

0.57

 7. Have you had enough money for your expenses?

0.51

Cov. Error term (item 6, 7)

0.39

Social support & peers

 1. Have you spent time with your friends?

0.62

 2. Have you had fun with your friends?

0.76

 3. Have you and your friends helped each other?

0.73

 4. Have you been able to rely on your friends?

0.64

School environment

 1. Have you been happy at school?

0.78

 2. Have you got on well at school?

0.75

 3. Have you been able to pay attention?

0.62

 4. Have you got along well with your teachers?

0.56