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Correlational findings

Study Sumnall & Bellis (2010): study ZZ 2010

Public:
16-35 aged night scene public, 9 European cities, 2008
Sample:
Respondents:
N = 1363
Non Response:
Assessment:
Questionnaire: paper
by post

Correlate

Authors's label
Cannabis
Our Classification
Operationalization
Selfreport on single question about having used cannabis:  
0 never (reference)
1 experimental
2 former
3 occasional
4 regular

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLW-u-sq-v-2-b D% = - p < .05 % happy:
-never         86%  
-experimental  85%  
-former        85%  
-occasional    85%  
-regular       79%