- 40+ aged, male managers, Bell Telephone Company, 1956-1976
- N = 422
- Non Response
- panel loss a t T5: 37%
Rating by experts
Expert ratings based on various methods used in assesment center
- Authors's Label
- Earlier mental ability _A
- Our Classification
- School and Abilities Test (SCAT)-Total.
A multiple-choice test composed of Verbal and Quantative subscales measuring intellectual ability.
Assessed at T1 (20 years before T5)
Observed Relation with Happiness
Later analysis of the full study-group (N=266) also showed a significantly negative correlation (BRAY 1983: p302).