- Male college students, followed 3 years, Harvard University, USA, 1957-60
- N = 17
- Non Response
- 37%: 9 dropouts, incomplete; about the same happiness distribution.
Multiple assesment methods
Mood diary kept 30 days and repeated interviews and tests during three years.
- Authors's Label
- Psycho-social development
- Our Classification
- Analysis of individual items from a 60- item Q sort, filled out both in very elated and in very depressed moods for both self-concept ('an accurate picture of yourself as you honestly feel and be- lieve you are') and ideal-concept ('the picture of the sort of person you have hoped to become or fancied yourself to be').
Observed Relation with Happiness
(See also 'Congruency between Real and Ideal Self-Image', and 'Content of Self-Image'; S 2.1.1 and S 2.2).