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Correlational findings

Study Welsch (2002a): study ZZ 1990

Public:
Adults, general public, 54 nations, 1990s
Sample:
Respondents:
N = 75000
Non Response:
n.a.
Assessment:
Interview: face-to-face

Correlate

Authors's Label
Water pollutants
Our Classification
Remarks
Data water quality from Data water quality from Global Environmental Monitoring System (United Nations Environment Programme) (United Nations Environment Programme)
Distribution
Mean= a:0,322 b:4,079 Median= a:0,270 b:3,850 SD= a:0,325 b:1,586 Range= a:0,003-1,750 b:1,170-7,970
Operationalization
In Mg/liter water:
a Phosphorus
b Solids (suspended solids in water bodies)

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-HL-u-sq-v-4-a = Average happiness by water pollutants in 54 nations. O-HL-u-sq-v-4-a b = -.06 ns Phosphorus (-.062) O-HL-u-sq-v-4-a b = +.01 ns Solids (+.008)

B's are controled for:
- income per head
- number of scientist & engineers per thousand population

B's remain the same when additionaly controled for:
- air pollutants (sulphur dioxide, nitrogen dioxide, particles)
- the other water pollutant
O-HL-u-sq-v-4-a b = - ns When instead the logarithm of happiness is regressed on the logarithm of the water pollutant:
- B's are negative
- B's are insignificant

Water pollutants do not significantly correlate with lower average happiness