- Chang, E.C.; D'Zurilla, T.J.; Maydeu-Olivares, A.
- Optimism and Pessimism as partially Independent Constructs: Relationships to Positive and Negative Affectivity and Psychological Well-Being
- Personality and individual Differences, 1996, Vol. 23, 433 - 440
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.