Study Berg & Veenhoven (2009): study ZZ 2005
- Public
- Adults, general public, 142 countries, 2005-2009
- Sample
- Respondents
- N = 25000
- Non Response
- Assessment
- 
        Multiple assesment methods                    
 Face-to-face interviews, ad well as telephone interviews and computer assisted interviews
Correlate
- Authors's Label
- Type of religion
- Our Classification
- 
            
- 
                        
- Remarks
- Sources: CIA factbook 2006, Religious Freedom Report 2004, 2006, Catholoc-hierachy.org, World Jewish Congress 1998
- Operationalization
- % of the population in each country that is:
 a: Protestant
 b: Catholic
 c: Jew
 d: Hindu
 e: Buddhist
 f: Muslim
Observed Relation with Happiness
Similar correlations obtained with affective component of happiness (Affect balance) and cognitive component (Cantril ladder)