Study Casas et al. (2013b): study ZZ Europe 1999
- Public
 - 13-16 aged children Romania and Spain 1999
 - Survey name
 - Unnamed study
 - Sample
 - Respondents
 - N = 3532
 - Non Response
 - 17 cases
 - Assessment
 - 
        Questionnaire: Paper & Pencil Interview (PAPI)                    
questionnaires are self-filled in classes 
Correlate
- Authors's Label
 - Satisfaction with what you have achieved in life
 - Our Classification
 - 
            
 - 
                        
 - Distribution
 - mean 7.81
 - Operationalization
 - Selfreport on single question:
How satisfied are you with…. what you have achieved in your studies
10 completely satisfied
:
0 completely dissatisfied 
Observed Relation with Happiness
- health
- standard of living
- how safe you feel
- the groups you belong to
- future security
- personal relationships
- life as a student
- achievements in your studies
- things you have learned
- relationships with school peers
- relationships with teachers
- the school you attend in general