- Male college students, followed 3 years, Harvard University, USA, 1957-60
- N = 17
- Non Response:
- 37%: 9 dropouts, incomplete; about the same happiness distribution.
Mood diary kept 30 days and repeated interviews and tests during three years.
- Authors's label
- Being more influenced by peaks than by dips.
- Our Classification
- Comparison of associations between dai-
ly lowest and daily average moods on the one side and daily highest and dai- ly average moods on the other side for both unhappy and happy men.