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

School size

Our Classification

Operationalization

1 Small school < 251 children
2 Big school > 251 children

Observed Relation with Happiness