Study Veenhoven (1994c): study ZZ Western nations 1940

Public:

Various panels, followed 1 to 40 years, 1940-1990

Sample:

Respondents:

N = 0

Non Response:

Assessment:

Interview: face-to-face
mostly

Correlate

Authors's label

timespan in years

Our Classification

Operationalization

Various measures of happiness, assessed repeatedly over time

Observed Relation with Happiness