Study Bradburn (1969): study US 1963
- Public
 - 21-60 aged, urban areas, USA, 1963 - 64
 - Sample
 - Respondents
 - N = 2787
 - Non Response
 - ± 20%, Attrition ± 30%
 - Assessment
 - 
        Interview: face-to-face                    
Repeated interviews at home using highly structured questionnaires 
Correlate
- Authors's Label
 - Change in pay
 - Our Classification
 - 
            
 - 
                        
 - Remarks
 - Data T1.Employed Ss only. Happiness level in average ridits (RT).
 - Operationalization
 - Single direct retrospective questions:
a. Raise in pay
0 No
1 Yes
b. Cut in pay
0 No
1 Yes 
Observed Relation with Happiness
Ridit analysis compares distribution in category with distribution in total sample. RT above .50 means relative high level, RT below .50 relative low level of happiness.