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
- Number of books in home
- Our Classification
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-
- Operationalization
- Simgle question at T1:
How many books are in your home?
1 = none, or very few (0 - 10);
2 = a few (11 - 25);
3 = one bookcase full (26 - 100);
4 = two bookcases full (101 - 250);
5 = three or four bookcases full (251 - 500);
6 = a room full; a library (501 or more)
Observed Relation with Happiness
T1 happiness: tau = +.00 (ns)
T2 happiness: tau = -.02 (ns)
T3 happiness: tau = -.01 (ns)
T4 happiness: tau = -.01 (ns)
T1:1966, T2:1968, T3:1969, T4:1970