Study Campbell et al. (1976): study US 1971
- Public
- 18+ aged, general public, USA, 1971
- Sample
- Respondents
- N = 2164
- Non Response
- 20%
- Assessment
-
Interview: face-to-face
Highly structured, at home
Correlate
- Authors's Label
- Family income
- Our Classification
-
-
- Operationalization
- 1.Less than $ 3.000
2.$ 3.000 - $ 7.00
3.$ 7.000 or more