To test the psychometric properties and measurement results of the KIDSCREEN-10 Mental Health Index in school children from 15 European countries.
Within the cross-sectional Health Behaviour in School-aged Children 2005/2006 Survey, 78,000 pupils aged 11, 13, 15 answered the KIDSCREEN and additional measures. Cronbach's alpha, Rasch partial credit model itemfit and ANOVAs were conducted.
Cronbach's alpha was 0.81, Rasch infit mean square residuals were 0.7-1.3. Mean scores varied 0.8 standard deviation across countries. Older pupils (effect size [ES] = 0.6), girls (ES = 0.2), pupils with low socio-economic status (ES = 0.5) or frequent health complaints (r = 0.5) reported decreased mental health.
The KIDSCREEN-10 displayed good psychometric properties. Measured differences between countries, age, gender, SES, and health complaints comply with theoretical considerations