Correlational finding on Happiness and Recent happiness (< 1 year ago)
Subject code: H04ab01a

StudyLehman (1988): study US 1981
TitleA Quality of Life Interview for the Chronically Mentally Ill.
SourceEvaluation and Program Planning, 1988, Vol. 11, 51 - 62
PublicChronic mental patients, USA,1981
SampleNon-probability purposive sample
Non-Response
Respondents N =469

Correlate
Author's labelGeneral Life Satisfaction
Page in Source 55
Our classificationRecent happiness (< 1 year ago), code H04ab01a
Operationalization
Selfreport on single question, asked twice in interview
How do you feel about your life as a whole......?"
7  delighted
6  pleased
5  mostly satisfied
4  mixed
3  mostly dissatisfied
2  unhappy
1  terrible

Summation: arthmetic mean
Error EstimatesInter-item correlation between response to this question at the beginning and at the end of the interview r=+.74 Los Angeles r=+.79 Rochester

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-DT-u-sqt-v-7-ar=+.71
One Week Test-Rtest Correlation(N=45)


Appendix 1: Happiness measures used
CodeFull Text
O-DT-u-sqt-v-7-aSelfreport on single question, asked twice in interview:

How do you feel about your life as a whole......?
7 delighted
6 pleased
5 mostly satisfied
4 mixed
3 mostly dissatisfied
2 unhappy
1 terrible

Summation: arithmetic mean

Name: Andrews & Withey's "Delighted-Terrible Scale" (original version)
Also known as Lehman's 'Global lifesatisfaction'


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