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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 & Pencil Interview (PAPI)

Correlate

Authors's Label
number of children
Our Classification
Related specification variables
Operationalization

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-SLu-u-sq-v-4-g = WITHIN MONOZYGOTIC TWIN-PAIR DIFFERENCE IN HAPPINESS O-SLu-u-sq-v-4-g Beta = + s   - females aged 25-45 years: Beta = +.03 (ns)
  - males aged 25-45 years: Beta = +.05 (05) O-SLu-u-sq-v-4-g Beta = + ns Beta’s controlled for:
- currently in partnership

  - females aged 25-45 years: Beta = +.00 (ns)
  - males aged 25-45 years: Beta = +.02 (ns) O-SLu-u-sq-v-4-g = BETWEEN ALL SUBJECTS DIFFERENCE IN HAPPINESS O-SLu-u-sq-v-4-g = Regressions across all subjects yield similar results