Study Adams (1997): study US 1980

Public:

Black Americans, USA, followed from 1980 to 1992

Sample:

Respondents:

N = 623

Non Response:

T1: 32%; T2: 19%; T3: 17%; T4:17%

Assessment:

Interview: face-to-face
T1: face to face interviews; T2,T3,T4: telephone interviews

Correlate

Authors's Label

Stability over time

Our Classification

Distribution

General Life Satisfaction:               Happiness
T1: M=3.08; N=620;                      T1: M=2.19; N=615
T2: M=3.20; N=613;                      T2: M=2.07; N=616
T3: M=3.24; N=621;                      T3: M=2.09; N=619
T4: M=3.21; N=621;                      T4: M=2.07; N=617

Operationalization

Happiness assessed at
T1: 1980
T2: 1987/1988
T3: 1989
T4: 1992

Observed Relation with Happiness