Study Graney (1975): study US 1967

Public

62-89 aged females, followed 4 years, USA, 1967-71

Sample

Respondents

N = 44

Non Response

27%; 24% unattainable, 3% incomplete.

Assessment

Interview: face-to-face
at home.

Correlate

Authors's Label

Frequency of telephone use

Our Classification

Operationalization

Direct question: 2 or less / 3 to 4 / 5 or more calls daily.
Assessed at T2.

Observed Relation with Happiness