- 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
- Academic performancerelative to poten- tial abilities
- Our Classification
- Discrepancy between predicted rank list (PRL) before college entrance and ac- tual grade average for the four years.
Observed Relation with Happiness
record, level of preparation, and aptitude tests.