Correlational finding on Happiness and subject: Current parental status

StudyHalman et al. (1987): study ZZ EU 10 1981
TitleTraditie, Secularisatie en Individualisering. (Tradition, Secularization and Individualisation- a Study into the Values of the Dutch within a European Context
SourceTilburg University Press, 1987, Tilburg, Netherlands
Public18+ aged, general public, EU 10 nations, 1981
Sample
Non-Response
Respondents N =12464

Correlate
Author's labelHaving children
Page in Source 212
Our classificationCurrent parental status
Operationalization
Direct question: "Do or did you have any children?" 
0 No children
1 Children

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-SLW-c-sq-n-10-aar=+.01 ns
France
O-SLW-c-sq-n-10-aar=+.03 ns
Great-Britain
O-SLW-c-sq-n-10-aar=+.07 p < .01
West Germany
O-SLW-c-sq-n-10-aar=+.06 p < .01
Italy
O-SLW-c-sq-n-10-aar=+.01 ns
Denmark
O-SLW-c-sq-n-10-aar=+.03 ns
Belgium
O-SLW-c-sq-n-10-aar=+.07 p < .01
Spain
O-SLW-c-sq-n-10-aar=+.13 p < .01
Ireland
O-SLW-c-sq-n-10-aar=+.04 ns
Northern Ireland

O-SLW-c-sq-n-10-aaDMt=+
EC (stratified sample)   
No children        Mt'=  6.56
Children           Mt'=  6.78
O-SLW-c-sq-n-10-aaBeta= ns
In none of the european countries,  weights of 
this variable reached .10 level in mu;ltiple 
regression analysis, when controlling for: 
happiness(HAPP 1.1), affect(AFF 2.3); satisfaction 
with health,income and family life; age, income, 
male sex,  education, marital status, work; 
urbanisation, type of dwelling, own home, 
religiousness, social participation; uncertainty 
about future, expected negative changes in income; 
satisfaction 5 years in past and future; 
tolerance, loneliness, misantropy, hopeless about 
life and sense of control.


Appendix 1: Happiness measures used
CodeFull Text
O-SLW-c-sq-n-10-aaSelfreport on single question:

All things considered, how satisfied are you with your life as-a-whole now.....?
1 dissatisfied
2
3
4
5
6
7
8
9
10 satisfied


Appendix 2: Statistics used
SymbolExplanation
BetaSTANDARDIZED REGRESSION COEFFICIENT by LEAST SQUARES (OLS)
Type: test statistic.

Measurement level: Correlates: all metric, Happiness: metric.
Range: [-1 ; +1]

Meaning:
beta > 0 a higher correlate level corresponds to a higher happiness rating on average.
beta < 0 a higher correlate level corresponds to a higher happiness rating on average.
beta = 0 no correlation.
beta = + 1 or -1 perfect correlation.
DMtDIFFERENCE of MEANS AFTER TRANSFORMATION
Type: descriptive statistic only.
Measurement level: Correlate: dichotomous, Happiness: metric
Theoretical range: [-10; +10]

Meaning: the difference of the mean happiness (happiness measured at a 0-10 rating scale) between the two correlate levels.
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