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 & Pencil Interview (PAPI)
 
Correlate
- Authors's Label
 - Life Satisfaction Index
 - Our Classification
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 - Remarks
 - Assessed at T1(1979) and T2(1981)
 - Operationalization
 - Index of closed questions on satisfaction with 14 distinct areas in life, including health, money, neighborhood and work (LSI)