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Correlational findings

Study Bachman et al. (1978): study US 1966 /1

Public:
Public highschool boys followed 8 years from grade 10, USA, 1966-74
Sample:
Respondents:
N = 2213
Non Response:
2.8% at T1, 17.2% at T2, 21.0% at T3, 28.9% at T4, 28.5% at T5
Assessment:
Interview: face-to-face
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