Study VanVaalen (2010): study NL 2009
- Public
 - Schoolchildren aged 9-12, the Netherlands, 2009
 - Sample
 - Respondents
 - N = 718
 - Non Response
 - Assessment
 - 
        Questionnaire: Paper & Pencil Interview (PAPI)                    
Questionnaire completed in class 
Correlate
- Authors's Label
 - Gender
 - Our Classification
 - 
            
 - 
                        
 - Distribution
 - 0 = 53, 1 = 54
 - Operationalization
 - 0 Girls
1 Boys 
Observed Relation with Happiness
Boys M = 3,85
- difference -,42