Study McCrae & Costa (1991): study US Baltimore County, Maryland 1979

Public:

Single males and couples Baltimore USA, followed 7 years, 1979-86

Sample:

Respondents:

N = 429

Non Response:

Assessment:

Questionnaire: paper

Correlate

Authors's label

Future happiness

Our Classification

Operationalization

Single direct question: "How do you feel about your life as a whole?" Rated on a 7-point terrible-delighted scale (HAP 4.1).

Assessed at:
- T1: 1979
- t2: 1981

Observed Relation with Happiness