Correlational finding on Happiness and Current age (in years)
Subject code: A04ab

StudyBotha et al. (2018): study ZA 2012
TitleHappiness, Socioeconomic Status, and Family Functioning in South African Households: a Structural Equation Modelling Approach
SourceApplied Research Quality Life, 2018, Vol. 13, 947-989
URLhttps://link.springer.com/article/10.1007%2Fs11482-017-9568-x
DOIdoi:org/10.1007/s11482-017-9568-x
Public16+ aged general public, South Africa, 2012
SampleProbability multi-stage cluster sample
Non-Response
Respondents N =2111

Correlate
Author's labelAge and age squared
Page in Source 952
Our classificationCurrent age (in years), code A04ab
Operationalization
a: log(age)
b: log (age squared)

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-HL-g-sq-v-7-abBeta=-2.4
LOG AGE

Beta controlled for:
- individual SES index / individual SES quartiles
- family situation
     - attachment
     - changeability
     - household size
     - household structure
     - female-headed household
- personal characteristics
     - log(age), log(age squared)
     - gender 
     - race (coloured, Asian/Indian, white)
     - marital status 
     - health status 
     - religion status
- location
     - geographical area
O-HL-g-sq-v-7-abBeta=-1.7
similar results when Beta is controlled for:
- household SES index
- household SES quartiles
- subjective SES index
- subjective SES quartiles
(instead of individual SES index)
O-HL-g-sq-v-7-abBeta=+2.4
LOG AGE SQUARED 

Beta controlled for:
- individual SES index / individual SES quartiles
- family situation
- personal characteristics
- location
O-HL-g-sq-v-7-abBeta=+1.7
similar results when Beta is controlled for:
- household SES index
- household SES quartiles
- subjective SES index
- subjective SES quartiles
(instead of individual SES index)


Appendix 1: Happiness measures used
CodeFull Text
O-HL-g-sq-v-7-abSelfreport on single question:

If you were to consider your life in general, how happy of unhappy would you say you are, on the whole?
7 completely happy
6 very happy
5 fairly happy
4 neither happy nor unhappy
3 fairly unhappy
2 very unhappy
1 completely unhappy
- can't choose
- no answer


Appendix 2: Statistics used
SymbolExplanation
Beta STANDARDIZED 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.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl