Study Noelle-Neumann (1977a): study XZ Germany West 1973 /1
- Public
 - 16+ aged, general public, West-Germany, 1973
 - Survey name
 - DE-Allensbacher Survey
 - Sample
 - Respondents
 - N = 2035
 - Non Response
 - Assessment
 - Behavioural observation
 
Correlate
- Authors's Label
 - Frequency of laughing
 - Our Classification
 - 
            
 - 
                        
 - Operationalization
 - Single direct question:
How long ago have you really laughed?
3 yesterday;
2 in the past two weeks or
1 longer ago?