Correlational finding on Happiness and subject: Burden of earlier life-events

StudyCrnic et al. (1984): study US 1981
TitleMaternal Stress and Social Support: Effects on the Mother-Infant Relationship from Birth to Eighteen Months.
SourceAmerican Journal of Orthopsychiatry, 1984, Vol. 54, 224 - 235
PublicMother-child pairs, followed 18 months after birth, USA, 1981-82
SampleSampling not reported
Non-ResponseAttrition at T2: 10%, at T3: 14%
Respondents N =105

Correlate
Author's labelStress
Page in Source 229
Our classificationBurden of earlier life-events
Operationalization
46-item checklist of life events in the past eight to
ten months, rated as having occurred or not occured,
whether the impact was good or bad and their degree of
effect (l=none to 4=great) (adapted Life Experiences
Survey: J. Sarason, J. Johnson and J. Siegel

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-QLS-c-sq-v-5-arpc=-
                   Happiness:                      
                              Tl        T2         
 T3
Stress: Tl    -.35(01)   0  (ns)    -.13(ns) 
Stress: T2              -.37(01)    -.18(ns) 
Stress: T3                          -.39(01)

rpc controlled for demographic covariates (age,
education, number of children, receipt of public
assistance, infant birth status (premature or full
term))

Tl: child 1 month, 
T2: child 8 months,
T3: child 18 months


Appendix 1: Happiness measures used
CodeFull Text
O-QLS-c-sq-v-5-aSelfreport on single question:

"When you take everything into consideration, your child, your adult life, etc, how would you describe your current life situation.....?'
1 things are very bad right now
2
3
4
5 things are very good
(Response options not fully reported)


Appendix 2: Statistics used
SymbolExplanation
rpcPARTIAL CORRELATION COEFFICIENT
Type: test statistic
Measurement level: Correlate: metric, Happiness: metric
Range: [-1; +1]

Meaning: a partial correlation between happiness and one of the correlates is that correlation, which remains after accounting for the contribution of the other influences, or some of them, to the total variability in the happiness scores.
Under that conditions
rpc > 0 a higher correlate level corresponds with a higher happiness rating,
rpc < 0 a higher correlate level corresponds with a lower happiness rating,
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl