Study Mussen et al. (1980): study US 1930

Public

Mothers, followed from age 30 to 70, Berkeley, USA, 1930-70

Sample

Respondents

N = 81

Non Response

Assessment

Interview: face-to-face
Extensive interviews between age 30 and 70

Correlate

Authors's Label

Earlier happiness

Our Classification

Remarks

Guidance group only (N=53)

Operationalization

Rating of cheerfulness (vs gloomy) on 7 point scale by independent interviewers
T1 (1930): Rating by two independent interviewers:
- clinical psychologist on the basis   of an interview, and  
- social worker on the basis of   observations during visits at home   and during tests of the child at   university
T2 (1970): Rating by one interviewer on the basis of an extensive interview

Observed Relation with Happiness