Study Sears & Barbee (1977): study US 1921

Public:

Gifted women (IQ >135), followed 50 years, California, USA, 1921-72

Sample:

Respondents:

N = 671

Non Response:

Attrition in 1972: 25%

Assessment:

Interview: face-to-face
Repeated interviews and questionaires

Correlate

Authors's label

Never married vs widowed

Our Classification

Operationalization

0 Widowed
1 Never married

Observed Relation with Happiness