print

Correlational findings

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 methods
Interviews, tests and questionnaires

Correlate

Authors's label
Concern about overpopulation
Our Classification
Operationalization
A mean of 6 items measuring respondent 's concern about overpopulation and his perception of what an ideal population size would be for the U.S. and for the world. Scale: 1.00 = low to 5.00 = high concern about overpopulation. Assessed at T4 and T5

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-HP-g-mq-v-5-a tau = - ns                 Concern about overpopulation
Happiness       T4          T5
T1        tau = -.04        -.00
T2        tau = -.01        -.01
T3        tau = -.02        -.02
T4        tau = -.02        -.01
All tau's not significant
T1:1966, T2:1968, T3:1969, T4:1970, T5:1974