Correlational finding on Happiness and subject: Life-expectancy in the nation

StudyHelliwell et al. (2016): study ZZ 2012
TitleThe Distribution of World Happiness.
SourceWorld Happiness Report, 2016, Vol.1, 8 - 48
URLhttp://worldhappiness.report/#happiness2016
Public15+ aged, general public, 156 nations, 2005-2015
SampleProbability area sample
Non-Response
Respondents N =1560000

Correlate
Author's labelHealthy life expectancy at birth
Page in Source 16
Our classificationLife-expectancy in the nation
Operationalization
World Health Organisation (WHO) publishes data on 
healthy life expectancy for the year 2012. World 
Development Indicators (WDI) makes availble time series 
of life expectancy. First we generate ratios of healthy 
life expectancy to life expectancy in 2012 for 
countries with both data. Then we apply the 
country-specific ratios to other years to generate the 
healthy life expectancy data.
Remarks
Data: World Health Organization.

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
C-BW-c-sq-l-11-cb=+.03 p < .01
AVERAGE happiness (cognitive component) by healthy 
life expectancy at birth in 156 nations.
b controlled for
- log GDP per capita
- social support
- freedom to make life choices
- generosity
- perceptions of corruption

Unaffected by additional control for AVERAGE 
happiness (affective component)


Appendix 1: Happiness measures used
CodeFull Text
C-BW-c-sq-l-11-cSelfreport on single question:

Here is ladder representing the 'ladder of life'. Let's suppose the top of the ladder represents the best possible life for you; and the bottom, the worst possible life for you. On which step of the ladder do you feel you personally stand at the present time?
10 best possible
9
8
7
6
5
4
3
2
1
0 worst possible life

This question was followed (not preceded) by items on life 5 years ago and 5 years from now.


Appendix 2: Statistics used
SymbolExplanation
bREGRESSION COEFFICIENT (non-standardized) by LEAST SQUARES (OLS)
Type: test statistic
Measurement level: Correlate: metric, Happiness: metric
Theoretical range: unlimited

Meaning:
b > 0 A higher correlate level corresponds with a higher happiness rating on average.
B < 0 A higher correlate level corresponds with a lower happiness rating on average.
B = 0 Not any correlation with the relevant correlate.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl