Study Bjornskov (2006): study ZZ 1990
- Public:
- 18+ aged, general public, 80 nations, 1990-2001
- Sample:
- Respondents:
- N = 800000
- Non Response:
- Assessment:
- Interview: face-to-face
Correlate
- Authors's label
- Putmans instrument
- Our Classification
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-
- Operationalization
- Average density of voluntary organisations; "Putmans instrument"