Correlational finding on Happiness and subject: Sum of negative life-events

StudyHeadey et al. (1993): study AU AU Victoria 1981
TitleDimensions of Mental Health: Life Satisfaction, Positive Affect, Anxiety and Depression.
SourceSocial Indicators Research, 1993, Vol. 29, 63 - 82
Public18-65 aged, Victoria, Australia, followed 1981 to 1987
SampleProbability stratified sample
Respondents N =419

Author's labelAdverse events
Page in Source 76
Our classificationSum of negative life-events
Number of adverse events mentioned on a 93-item 
questionnaire on 'events and experiences in the last 
two years.
Typical items are:
- you took up a new sparetime activity
- you had a financial crisis
- you started a new job
- you failed an important exam
- you ended an extra marital affair
- you made new friends
- you were robbed
Each item rated 'yes' or 'no'

Observed Relation with Happiness
O-Sum---mq-*-0-ar=-.25 p < .05

Appendix 1: Happiness measures used
CodeFull Text
O-Sum---mq-*-0-aSelf report on 8 items

A How do you feel about your life as a whole?
Rated on a 9-step Delighted-Terrible scale
Asked twice in the interview with 15 minutes interval

B a In most ways my life is close to ideal
b The conditions of my life are excellent
c I am satisfied with my life
d So far, I have gotten the important things I want in life
e If I could live my life over, I would change nothing'
Answers rated: 7 strongly agree to 1 strongly disagree

C How do you feel usually?
0 extremely unhappy
10 extremely happy

Computation: factor

Appendix 2: Statistics used
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]

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.
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.