Correlational finding on Happiness and Aggressive behavior
Subject code: A05ab02

StudyBachman et al. (1978): study US 1966
TitleYouth in Transition, Vol. VI. Adolescence to Adulthood. Change and Stability in the Lives of Young Men.
SourceInstitute for Social Research, 1978, University of Michigan, Ann Arbor, USA
PublicPublic highschool boys followed 8 years from grade 10, USA, 1966-74
Non-Response2.8% at T1, 17.2% at T2, 21.0% at T3, 28.9% at T4, 28.5% at T5
Respondents N =1628

Author's labelInterpersonal aggression
Our classificationAggressive behavior, code A05ab02
A mean of six (at T1, T2, T3 and T4) or
eight (at T5) items which ascertains how often 
respondent hit, fought, or hurt other people, including 
relatives, teachers, and students. Scale: 0.00 = never 
to 4.00 = five or more times

Observed Relation with Happiness
          Interpersonal aggression
        T1      T2      T3      T4      T5
T2    -.18    -.09    -.09    -.06 ns -.05 ns
T2    -.10    -.10    -.08    -.02 ns -.01 ns
T3    -.07 ns -.08    -.08    -.04 ns -.04 ns
T4    -.08 ns -.02 ns -.06 ns -.03 ns -.05 ns
All tau's significant, unless indicated otherwise
T1:1966, T2:1968, T3:1969, T4:1970, T5:1974

Appendix 1: Happiness measures used
CodeFull Text
O-HP-g-mq-v-5-aSelfreport on 6 questions:

" Describe the kind of person you are. Please read each sentence, then mark how often it is true for you"
1 I feel like smiling
2 I generally feel in good spirits
3 I feel happy
4 I am very satisfied with life
5 I find a good deal of happiness in life
6 I feel sad

Response options:
5 almost always true
4 often true
3 sometimes true
2 seldom true
1 never true

Summation: average
Possible range: 1 to 5

Appendix 2: Statistics used
tauGOODMAN & Kruskal's TAU
Type: descriptive statistic only.
Measurement level: Correlate: nominal, Happiness: ordinal
Range: [0; +1]

tau = 0 knowledge of the correlate value does not improve the prediction quality of the happiness rating.
tau = 1 knowledge of the correlate value enables a perfect (error-free) prediction of the happiness rating.
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.