Study Fischer et al. (2015): study AU 1995
 Public
 Youngsters Australia, followed from age 14 to age 21, 19952002
 Survey name
 AU_MUSP
 Sample
 Respondents
 N = 3745
 Non Response
 Assessment

Questionnaire: Paper & Pencil Interview (PAPI)
Questionaires completed at ages 14 and 21
Correlate
 Authors's Label
 Age onset of canabis use (by happiness at age 14)
 Our Classification


 Remarks
 Assessed age 21 (T2) Question on age of onset not reported
 Related specification variables


 Operationalization
 Selfreport on questions whether one had ever used canabis and at what age the first use took place
1: First use of canabis at age..
a: 15 or less
b: 1617
c: 18 or more
0: Never used canabis (reference)
Observed Relation with Happiness
Odd Ratios denote chance of being UNhappy. Sign of correlation reversed to fit standard notation in WDH
 15 or less OR = 2.09 CI95[1.17, 3.71]
 1617 OR = 1.35 CI95[0.93, 1.95]
 18 or more OR = 1.54 CI95[0.93, 2.56]
 15 or less OR = 3,57 CI95[1.916,68]
 1617 OR = 2,79 CI95[1.674,69]
 18 or more OR = 2,00 CI95[1.043,87]
 15 or less OR = 2.09 CI95[1.17, 3.71]
 1617 OR = 1.35 CI95[0.93, 1.95]
 18 or more OR = 1.54 CI95[0.93, 2.56]
 15 or less OR = 7.62 CI95[3.42, 16.97]
 1617 OR = 2.25 CI95[1.09, 4.65]
 18 or more OR = 5.02 CI95[2.33, 10.85]