Correlational finding on Happiness and Perceived usefullness of one's life
Subject code: M05ab01

StudyBell (1974): study US 1973
TitleCognitive Dissonance and the Life Satisfaction of Older Adults.
SourceJournal of Gerontology, 1974, Vol. 29, 564 - 571
PublicMales, shortly before and after retirement, USA 1973-74
SampleNon-probability purposive-quota sample
Non-Response21%
Respondents N =114

Correlate
Author's labelPerceived usefulness
Page in Source 567
Our classificationPerceived usefullness of one's life, code M05ab01
Operationalization
Perceived usefulness
Questions not reported

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-SLL-c-sq-v-5-er=+.68 p < .001


Appendix 1: Happiness measures used
CodeFull Text
O-SLL-c-sq-v-5-eSelfreport on single question:

'On the whole, how satisfied would you say you are with your way of life today?'
1 not satisfied at all
2
3
4
5 very satisfied
(labels of response-options 2, 3 and 4 not reported)


Appendix 2: Statistics used
SymbolExplanation
rPRODUCT-MOMENT CORRELATION COEFFICIENT (Also "Pearson's correlation coefficient' or simply 'correlation coefficient')
Type: test statistic.
Measurement level: Correlate: metric, Happiness: metric
Range: [-1; +1]

Meaning:
r = 0 no correlation ,
r = 1 perfect correlation, where high correlate values correspond with high happiness values, and
r = -1 perfect correlation, where high correlate values correspond with low happiness values.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl