Correlational finding on Happiness and Extraverted
Subject code: P05az

StudyNettle (2005): study GB 2000 /1
TitleHappiness. The Science behind Your Smile.
SourceOxford University Press, 2005, Oxford, UK
PublicAdults, Great Britain, 2000
SampleNon-probability purposive sample
Non-Responsenot reported
Respondents N =574

Correlate
Author's labelExtroversion
Page in Source 102
Our classificationExtraverted, code P05az
Operationalization
Rated on a 5-point numeric scale by extroversion score.
The four groups are formed by creating quartiles from 
set of scores;
1: Low
2: Low-Mid
3: High-Mid
4: High
Observed distributionMeasure not reported
Remarks
N=567

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-H?-?-sq-?-5-aDM=+
1: Low         M= 3,4
2: Low-Mid     M= 3,6         
3: High-Mid    M= 3,8         
4: High        M= 4,1


Appendix 1: Happiness measures used
CodeFull Text
O-H?-?-sq-?-5-aSelfreport on single question

.. how happy overall.. (full text not reported)
1
2
3
4
5
Answer options not reported


Appendix 2: Statistics used
SymbolExplanation
DMDIFFERENCE of MEANS
Type: descriptive statistic only.
Measurement level: Correlate: dichotomous, Happiness: metric
Range: depending on the happiness rating scale of the author; range symmetric about zero.

Meaning: the difference of the mean happiness, as measured on the author's rating scale, between the two correlate levels.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl