Study Ormel (1980): study NL 1970
- 15-60 aged, general public, followed 12 month, The Netherlands, 1967-77
- N = 296
- Non Response
- Authors's Label
- Positive affects
- Our Classification
- 4-item additive index of positive affects in the past few weeks (PA index from Bradburns Affect Balance Scale: part of happiness indicator AFF 2.3). Assessed at T2(1976) and T3(1977).