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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
Need for self- development
Our Classification
Operationalization
15-item index containing closed questions designed to measure the need for self-development. Scale: 1.00 = low; 5.00 = high need for self-develop- ment. Assessed at T1, T2, T3, and T4

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-HP-g-mq-v-5-a tau = + p < .001                   Need for self-development
Happiness         T1      T2      T3      T4
T1         tau = +.34    +.19    +.20    +.15
T2         tau = +.21    +.33    +.24    +.22
T3         tau = +.18    +.18    +.32    +.21
T4         tau = +.13    +.15    +.22    +.30
All tau's significant (001)
T1:1966, T2:1968, T3:1969, T4:1970