- Bain, P.G.; Lemmon, H.; Teunisse, S.; Whalley, L.J.
- Quality of Life in Healthy Old Age: Relationships with Childhood IQ, Minor Psychological Symptoms and Optimism
- Social Psychiatry and Psychiatric Epidemiology, 2003, Vol.38, 632-636
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.