Study Diener & Tay (2015): study ZZ 2005
- Public
 - 15+ Aged, general public, 164 nations, 2005-2013
 - Survey name
 - INT-Gallup World Polls
 - Sample
 - Respondents
 - N = 1229431
 - Non Response
 - Assessment
 - 
        Interview: face-to-face                    
In addtion Interview: telephone (CATI) 
Correlate
- Authors's Label
 - Life expectency
 - Our Classification
 - 
            
 - 
                        
 - Remarks
 - Life expectency data were obtained from the World Bank World Development Indicators.
 - Distribution
 - M=69.8, Range from 46.2 (Sierra Leone) to 82.9 (Hong Kong)
 - Operationalization
 - Life expectency at birth (years).