Correlational finding on Happiness and What one eats
Subject code: N15ab04

StudyBlanchflower et al. (2013): study GB Wales 2007
TitleIs Psychological Well-Being Linked to the Consumption of Fruit and Vegetables?
SourceSocial Indicators Research, 2013, Vol. 114, 785 - 801
URLhttp://link.springer.com/article/10.1007%2Fs11205-012-0173-y
DOIDOI: 10.1007/s11205-012-0173-y
Public16+ aged, general public, Wales, UK, 2007-2010
SampleProbability simple random sample
Non-Response
Respondents N =49972

Correlate
Author's labelFruit and vegetable consumption
Page in Source Table 6
Our classificationWhat one eats, code N15ab04
Operationalization
Selfreport on daily consumption number of fruit and 
vegetables:
1. 1-2 portions
2. 2-3 portions
3. 3-4 portions 
4. 4-5 portions
5. 5-6 portions 
6. 6-7 portions 
7. 7-8 portions
8. 8+  portions

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
M-TH-cm-sq-v-5-bb=+.04 p < .05
1-2 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.07 p < .01
2-3 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.11 p < .01
3-4 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.14 p < .01
4-5 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.16 p < .01
5-6 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.16 p < .01
6-7 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.18 p < .01
7-8 portions (vs < 1 portion)
M-TH-cm-sq-v-5-bb=+.17 p < .01
8+  portions (vs < 1 portion)

B's controlled for:
-Demographic characteristics
 -age
 -gender
-Socioeconomic characteristics
 -education
 -occupation
 -household location
-Health
 -disability
 -exercise
 -smoking
 -body mass index


Appendix 1: Happiness measures used
CodeFull Text
M-TH-cm-sq-v-5-bSelfreport on single question:

How much of the time during the past 4 weeks have you felt happy?
5 all the time
4 most of the time
3 sometimes
2 rarely
1 never
- don't know
- don't remember

Part of 9 item ODIN Affect Balance Scale (A-AB/cm/mq/v/5/..)


Appendix 2: Statistics used
SymbolExplanation
bREGRESSION COEFFICIENT (non-standardized) by LEAST SQUARES (OLS)
Type: test statistic
Measurement level: Correlate: metric, Happiness: metric
Theoretical range: unlimited

Meaning:
b > 0 A higher correlate level corresponds with a higher happiness rating on average.
B < 0 A higher correlate level corresponds with a lower happiness rating on average.
B = 0 Not any correlation with the relevant correlate.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl