- 15-60 aged, general public, followed 12 month, The Netherlands, 1967-77
- N = 296
- Non Response:
- Authors's label
- Change in happiness
- Our Classification
- Increase in happiness over T2-T3.
8-item additive index of specific affects in the past few weeks (Bradburn Affect Balance Scale: AFF 2.3)
Assessed at T2(1976) and T3(1977).