Correlational finding on Happiness and Long term happiness (< 10 years ago)
Subject code: H04ab01c

StudyNaess et al. (2004): study NO Nord-Trøndelag 1984
TitleDiabetes Mellitus and Psychological Well-Being. Change between 1984-1986 and 1995-1997. Results of the Nord-Trondelag Health Study.
SourceJournal of Diabetes and its Complications, 2004, Vol. 18,141 - 147.
DOIDOI:10.1016/S1056-8727(03)00036-9
Public20-90 aged, general public, Nord-Trondelag, Norway followed 1 year, 1985-1996
SampleNon-probability chunk sample
Non-Response
Respondents N =65599

Correlate
Author's labellife satisfaction
Page in Source 144
Our classificationLong term happiness (< 10 years ago), code H04ab01c
Operationalization
Selfreport on single question:
Considering how you feel these days, are you generally 
satisfied with your life or are you generally 
dissatisfied?
7  extremely satisfied
6  very satisfied
5  quite satisfied
4  both satisfied and dissatisfied
3  quite dissatisfied
2  very dissatisfied
1  extremely dissatisfied
Remarks
Happiness assessed at T1: (1984-86) anf T2 (1995-97). 
Average time difference 11 years

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-SLW-c-sq-v-7-cr=+.67
Two week follow-up at T1
O-SLW-c-sq-v-7-cr=+.37
+.34 with same item in paralel questionnaire at T2
O-SLW-c-sq-v-7-cES= ns
No T1-T2 CHANGE in happiness


Appendix 1: Happiness measures used
CodeFull Text
O-SLW-c-sq-v-7-cSelfreport on single question:

"Considering how you feel these days, are you generally satisfied with your life or are you generally dissatisfied?"
7 extremely satisfied
6 very satisfied
5 quite satisfied
4 both satisfied and dissatisfied
3 quite dissatisfied
2 very dissatisfied
1 extremely dissatisfied


Appendix 2: Statistics used
SymbolExplanation
ESEFFECT SIZE
Type; descriptive statistic
Range: [-1;+1]

Meaning:

Computation: T1-T2 mean devided by pooled SD

Interpretation: ES<.20 trivial, .20>ES>.50 small, .50>ES>.80 medium, >.80 large effect

Reference: Cohen
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