Study Bachman et al. (1978): study US 1966
- Public
- Public highschool boys followed 8 years from grade 10, USA, 1966-74
- Sample
- Respondents
- N = 1628
- Non Response
- 2.8% at T1, 17.2% at T2, 21.0% at T3, 28.9% at T4, 28.5% at T5
- Assessment
-
Multiple assesment methods
Interviews, tests and questionnaires
Correlate
- Authors's Label
- Marijuana use
- Our Classification
-
-
- Operationalization
- Simple direct question at T3, T4 and T5 asking respondent how often he used marijuana (for other than medical purposes) during part or all of the last year. 1 = never; 2 = once or twice a year; 3 = 3 - 10 times a year; 4 = once or twice a month; 5 = once or twice a week; 6 = nearly every day
Observed Relation with Happiness
Happiness T3 T4 T5
T1 tau = -.06 -.05 -.05
T2 tau = -.06 -.08 (05) -.05
T3 tau = -.01 -.06 -.02
T4 tau = -.02 -.04 -.06
All tau's not significant, unless indicated otherwise
T1:1966, T2:1968, T3:1969, T4:1970, T5:1974