### Correlational finding on Happiness and Feeling tranquil (vs restless)Subject code: M15ac15

 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 Stress on individual and nation level Page in Source 264 Our classification Feeling tranquil (vs restless), code M15ac15 Operationalization ```Selfreport on single question about experienced stress in the previous day. Rated: 1: yes 0: no ```

 Observed Relation with Happiness HappinessMeasure Statistics Elaboration/Remarks C-BW-c-sq-l-11-c r=-.07 p < .001 ```Individual level: Individual happiness by individual stress ``` C-BW-c-sq-l-11-c r=+.20 p < .05 ```Nation level: Average happiness by % yes responses in nation ```

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 r PRODUCT-MOMENT CORRELATION COEFFICIENT (Also "Pearson's correlation coefficient' or simply 'correlation coefficient')Type: test statistic.Measurement level: Correlate: metric, Happiness: metricRange: [-1; +1]Meaning:r = 0 « no correlation ,r = 1 « perfect correlation, where high correlate values correspond with high happiness values, andr = -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