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Correlational findings

Study Kohler et al. (2005): study DK 2002

Public
20-70 aged identical twins, Denmark, 2002
Sample
Respondents
N = 3226
Non Response
26%
Assessment
Questionnaire: paper

Correlate

Authors's Label
similarity in happiness
Our Classification
Distribution
FEMALE 25-45 YEARS: M=1.45, SDwithintwinpair=.52, SDoverall=.59; MALE 25-45 YEARS: M=1.45, SDwithintwinpair=.52, SDoverall=.59; FEMALE 50-70 YEARS: M=1.46, SDwithintwinpair=.49, SDoverall=.57; MALE 50-70 YEARS: M=1.51, SDwithintwinpair=.48, SDoverall=.55
Related specification variables
Operationalization
within-twinpair correlation

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLu-u-sq-v-4-g r = + ALL
20-45 years    +.21
50-70 years    +.24

FEMALES  
25-45 years    +.21
50-70 years    +.25

MALES
25-45 years    +.21
50-70 years    +.25