- 30-55 aged, general public, Amsterdam, The Netherlands, 1965
- N = 600
- Non Response:
Structured interview and low structured questionnaire at home.
- Authors's label
- Social contacts of own family
- Our Classification
- 2-item index of closed questions on frequency of contact and appreciation of contact.
Observed Relation with Happiness
Males : r = +.00
Females: r = +.36