- Gifted women (IQ >135), followed 50 years, California, USA, 1921-72
- N = 671
- Non Response:
- Attrition in 1972: 25%
Repeated interviews and questionaires
- Authors's label
- Number of children
- Our Classification
- a. Actual number in 1972 (including
adopted and stephchildren).
b. Same as planned (Assessed in 1950).
c. Number wanted if life lived over
(Assessed in 1950).
Observed Relation with Happiness