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

Daily cigarette use

Our Classification

Operationalization

Direct question asking respondent how often he smoked cigarettes during the last year.
Scale:
1 = nearly every day;
0 = less than daily use.

Assessed at T3, T4 and T5

Observed Relation with Happiness