Study Gross et al. (1997): study NO 1992

Public:

Young and old, Norway, Trondheim, 199?

Sample:

Respondents:

N = 49

Non Response:

Assessment:

Questionnaire: paper

Correlate

Authors's label

Age

Our Classification

Operationalization

1: aged 20 35      (young)
2: old aged 70+  (old)

Observed Relation with Happiness