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Correlational findings

Study Bartels & Boomsma (2009): study NL 2005

Public
12+aged, mono- and dizygotic twins and their non-twin sibblings, The Netherlands, 2005-2007
Sample
Respondents
N = 4052
Non Response
43,9
Assessment
Questionnaire: Paper & Pencil Interview (PAPI)
Mailed questionnaire

Correlate

Authors's Label
Happiness of twin sibbling
Our Classification
Remarks
Question type O-BW (Cantril's Ladder of Life rating), both in 'general' variant and in 'this moment' variant
Distribution
great mean 8.3 (mean of means of subsample)
Related specification variables
Operationalization
Twin sibbling's happiness reported in response to same single questions

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks C-BW-g-sq-l-10-a = MONO-ZIGOTIC TWIN PAIRS C-BW-g-sq-l-10-a r = +.42 - males C-BW-g-sq-l-10-a r = +.53 - females C-BW-g-sq-l-10-a = DI-ZIGOTIC SAME-SEX TWIN PAIRS C-BW-g-sq-l-10-a r = +.10 - males C-BW-g-sq-l-10-a r = +.26 - females C-BW-g-sq-l-10-a r = +.16 OPPOSITE-SEX TWIN PAIRS C-BW-g-sq-l-10-a Beta-L = +.22 Estimated additive genetic influences:
95%CI[+.06;+.24] C-BW-g-sq-l-10-a Beta-L = +.25 Estimated non-additive genetic influences:
95%CI[+.23:+.25] C-BW-g-sq-l-10-a Beta-L = +.53 Estimated non-shared enviromental influences
95%CI[+.52;+.57] C-BW-m-sq-l-10-a = MONO-ZYGOTIC TWIN-PAIRS C-BW-m-sq-l-10-a r = +.40 - males C-BW-m-sq-l-10-a r = +.32 - females C-BW-m-sq-l-10-a = DIZYGOTIC TWIN-PAIRS C-BW-m-sq-l-10-a r = +.09 - males C-BW-m-sq-l-10-a r = +.15 - females C-BW-m-sq-l-10-a r = +.21 DI-ZYGOTIC OPPOSITE-SEX TWIN-PAIRS C-BW-m-sq-l-10-a Beta-L = +.35 Estimated additive genetic influences:
95%CI[+.22;+.41] C-BW-m-sq-l-10-a Beta-L = +.01 Estimated non-additive genetic influences:
95%CI[+.00:+.01] C-BW-m-sq-l-10-a Beta-L = +.64 Estimated non-shared environmental influences:
95%CI[+.59;+.69]


Cross-measure correlations are similar, but lower