Correlational finding on Happiness and subject: Community size

StudyPalisi & Ransford (1987): study US 1972
TitleEffects of Urbanism, Race and Class on Happiness and Physical Health.
SourceSociological Spectrum, 1987, Vol. 7, 271 - 295
DOIDOI: 10.1080/02732173.1987.9981822
Public18+ aged, general public, USA 1972-1983
Respondents N =15320

Author's labelUrbanism
Page in Source 278
Our classificationCommunity size
1.Counties with towns of 10.000 or more  and rural 
2.Suburbs of either the 12 largest
  Standard Metropolitan Statistical
  Areas (SMSA's) or of the remaining
  100 largest SMSA's
3.Central city of the remaining 100 
  largest SMSA's
4.Central city of the largest SMSA's

Observed Relation with Happiness
O-HL-c-sq-v-3-aar=-.07 p < .001
Whites, less than high school
O-HL-c-sq-v-3-aar=-.06 p < .05
Blacks, less than high school
O-HL-c-sq-v-3-aar=-.05 p < .001
Whites, high school graduate
O-HL-c-sq-v-3-aar=-.05 ns
Blacks, high school graduate
O-HL-c-sq-v-3-aar=-.07 p < .01
Whites, college
O-HL-c-sq-v-3-aar=-.05 ns
Blacks, college

Linear relationships

Appendix 1: Happiness measures used
CodeFull Text
O-HL-c-sq-v-3-aaSelfreport on single question:

Taken all together, how would you say things are these days? Would you say that you are....?
3 very happy
2 pretty happy
1 not too happy

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.