Correlational finding on Happiness and subject: Current income level (unspecified)

StudyAllardt (1973): study FI 1972
TitleAbout Dimensions of Welfare: An Explanatory Analysis of a Comperative Scandinavian Survey.
SourceResearch Reports, Nr.1, Research Group for Comparative Sociology, University of Helsinki, 1973, Finland
Public15-64 aged, general public, Finland, 1972
SampleProbability multistage stratified area sample
Respondents N =1000

Author's labelIncome
Our classificationCurrent income level (unspecified)
Coded in 4 numbers

Observed Relation with Happiness
Controlled for:Housing density, education, social 
status, chronic illness, anxiety, frequency of 
meetings with relatives, number of friends, 
opportunities to make personal contacts, 
possiblities to decide on matters concerning one's 
own personal life, number of memberships in clubs 
and associations, interesting life, easyness of 
life, loneliness, feelings of being liked, 
feelings of being able to use knowledge and 
skills, feeling of chance to succeed, feelings of 
getting sufficient attention, satisfaction with 
income, year of birth(young-old), male vs. female, 
no. of communities in which lived.

Appendix 1: Happiness measures used
CodeFull Text
O-HL-c-sq-v-4-aSelfreport on single question:

Do you feel your life at present is.....?
4 very happy
3 quite happy
2 quite unhappy
1 very unhappy

Appendix 2: Statistics used
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,
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.