Pitkälä et al. (2004): study FI 1989
- Pitkälä, K.H.; Laakkonen, M.L.; Strandberg, T.E.
- Positive Life Orientation as a Predictor of 10-Year Outcome in an Aged Population.
- Journal of Clinical Epidemiology, 2004, Vol. 57, 409 - 414
- 75-85 aged, Helsinki, Finland followed 1989-1999, ( T1 1989, T2 1994, T3 1999)
- Probability stratified sample
- N = 491
- Non Response
Also postal questionnaire and clininal examination.
Happiness Measure(s) and Distributional Findings
- Full text:
Self report on single question:
I am satisfied with my life today
1 don't know
Item in Munsh Happiness inventory