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Correlational findings

Study Fischer et al. (2015): study AU 1995

Public
Youngsters Australia, followed from age 14 to age 21, 1995-2002
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 change happiness over age 14-21)
Our Classification
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: 16-17
     c: 18 or more
0: Never used canabis (reference)

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks M-FH-c-sq-v-3-b OR = T1 (age 14) T2 (age 21) CHANGE happiness by onset of canabis use in between. Change measured controling correlation with T2 happiness for T1 happiness

Odd Ratios denote chance of getting less happy. Sign of correlation reversed to fit standard notation in WDH
M-FH-c-sq-v-3-b OR = - s/ns T1-T2 CHANGE to Happy (vs Very happy)
- age 15 or less OR = 2.08 CI95[1.07.4.01]
- age 16-17      OR = 1.94 CI95[1.20-3,13]
- age 18 or more OR = 1.49 CI95[0.83-2.69]
O-SLW-c-sq-v-3-b OR = - s/ns T1-T2 CHANGE to UNhappy (vs Very happy)
- age 15 or less OR = 1.86 CI95[0.58-5.97]
- age 16-17      OR = 2.28 CI95[1.02-5,12]
- age 18 or more OR = 2.97 CI95[1.22-7.26]