Study Campbell (1981): study US 1978

Public

18+ aged, general public, USA, 1978

Sample

Respondents

N = 3692

Non Response

about 20 %

Assessment

Interview: face-to-face
at home

Correlate

Authors's Label

Family income

Our Classification

Operationalization

Highest quartile, second quartile,
third quartile and lowest quartile.

Observed Relation with Happiness