Correlational finding on Happiness and Depressive (f31-33)
Subject code: H13ac04a

StudyLangeveld (1998): study NL 1992
TitleQuality of Life in Adolescents with Migraine and Other Headaches.
SourceThesis, Erasmus University Rotterdam, 1998, Netherlands. ISNB 90 90 12 007 6
PublicSecundary school pupils, Netherlands, 199?
SampleNon-probability chunk sample
Non-Response3%
Respondents N =223

Correlate
Author's labelDepression
Page in Source 39, 43, 44
Our classificationDepressive (f31-33), code H13ac04a
Operationalization
Selfreport on 6 questions about feelings in the last 
week
- I was feeling hopeless
- I did not sleep well

Rated on an 4-point numerical scale
0= rarely or never/not at all
1= sometimes/a little
2= often/quite a bit
3= very often or always/very much
Observed distributionM/nx= .55; SD/nx=.47 (nx= number of items in the subscale)
Error EstimatesAlpha=.74

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-SLW-cw-sq-ol-11-ar=-.29 p < .001


Appendix 1: Happiness measures used
CodeFull Text
O-SLW-cw-sq-ol-11-aSelfreport on single question;

How satisfied or unsatisfied were you last week with your life in general?
Please answer this question below by drawing a cross on the line

_________________________________________
completely completely

Scoring: mm on this 100 mm line


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