Study Veenhoven (2005c): study ZZ 1973

Public:

Adults, general public, EU 8 member states, USA and Japan, 1973-2002

Sample:

Respondents:

N = 300000

Non Response:

Assessment:

Interview: face-to-face

Correlate

Authors's label

Trend Happy Life Years 1973-2002

Our Classification

Operationalization

Yearly change 1973-2002

Observed Relation with Happiness