Study Ward (1979): study US 1972

Public:

50+ aged, USA, 1972-1977

Sample:

Respondents:

N = 3557

Non Response:

Assessment:

Interview: face-to-face

Correlate

Authors's label

Social contacts

Our Classification

Operationalization

Selfreport of frequency of contact with:
- relatives
- neighbors
- friends

Observed Relation with Happiness