Correlational finding on Happiness and subject: Major life-change or not

StudyTessler & Mechanic (1975): study US 1973
TitleConsumer Satisfaction with Prepaid Group Practice: A Comparative Study.
SourceJournal of Health and Social Behavior, 1975, Vol. 16, 95 -113
PublicEmployees' families, two firms, USA, 1973
Sample
Non-Response-
Respondents N =712

Correlate
Author's labelMajor life changes
Page in Source 103
Our classificationMajor life-change or not
Operationalization
Experience of a major life change (either positive or 
negative) in the past year.

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
A-AOL-g-sq-v-3-cr=+.07 ns


Appendix 1: Happiness measures used
CodeFull Text
A-AOL-g-sq-v-3-cSelfreport on single question:

"Would you say that your spirits most of the time are...?"
3 very good
2 fair
1 low


Appendix 2: Statistics used
SymbolExplanation
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