### Correlational finding on Happiness and Standard of living in the nationSubject code: N04ac

 Study Ng et al. (2009): study ZZ World samples 2005 Title Affluence, Feelings of Stress, and Well-Being. Source Social Indicators Research, 2009, Vol. 94, 257 - 271 DOI DOI:10.1007/s11205-008-9422-5 Public 15+ aged, general public, 121 nations, 2005-2006 Sample Probability sample (unspecified) Non-Response Respondents N = 125077

 Correlate Author's label Rich countries ( vs poor) Page in Source 265 Our classification Standard of living in the nation, code N04ac Operationalization ```Index of: A: average household income of all respondents within the same nation. B: The GDP ( Purchasing Power Parity) data of each nation, obtained from the World Bank. C: Percentage of people in a nation who possesses modern conviences. D: Percentage of people in a nation who could not meet their basic needs. E: Life expectancy at birth. Splitt up into 1 poor nations 2 rich nations ``` Remarks ```Wealth of nation is measured by the survey itself and an independent source. The per capita GDP (Purchasing Power Parity) data of each nation was obtained from the World Bank. ```

 Observed Relation with Happiness HappinessMeasure Statistics Elaboration/Remarks C-BW-c-sq-l-11-c DM=+ ```AVERAGE happiness by AVERAGE standard of living in 121 nations Rich countries M = 6.71 Poor countries M = 4.64 - difference= +2.07 ``` C-BW-c-sq-l-11-c DM=+

Appendix 1: Happiness measures used
 Code Full Text C-BW-c-sq-l-11-c Selfreport 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 possible9876543210 worst possible lifeThis question was followed (not preceded) by items on life 5 years ago and 5 years from now.

Appendix 2: Statistics used
 Symbol Explanation DM DIFFERENCE of MEANSType: descriptive statistic only.Measurement level: Correlate: dichotomous, Happiness: metricRange: 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