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 siblings
- Our Classification
-
-
- Remarks
- Sum of number of brothers and sisters
- Operationalization
- T1 number of sibblings
;
7 = 7 or more)
Observed Relation with Happiness
T1 happiness: tau = +.00 (ns)
T2 happiness: tau = -.03 (ns)
T3 happiness: tau = -.01 (ns)
T4 happiness: tau = -.03 (ns)
T1:1966, T2:1968, T3:1969, T4:1970