Hajak (2001): study DE 1997
- Hajak, G.
- Epidemiology of Severe Insomnia and its Consequences in Germany.
- European Archives of Psychiatry and Clinical Neuroscience, 2001, Vol. 251, 49 - 56
- 18+ aged, general public, Germany, 1997
- Probability stratified sample
- N = 1913
- Non Response:
interview at subjects home and additional questionnaire
Happiness Measure(s) and Distributional Findings
- Full text:
Selfreport on single question:
How satisfied are you the quality of your life these days?
1 very dissatisfied
3 neither nor
5 very satisfied
Numbering reversed in original rating scale
- Author's label:
- Global quality of life
- Page in publication:
Current psycho-somatic complaints