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. 2023 Jun 29;18(6):1562–1574. doi: 10.1177/17456916231178716

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© The Author(s) 2023

This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Fig. 2. — Association of well-being for Twin1 and Twin2. Scatterplot (left) with slopes for each country (orange) and worldwide (blue), for monozygotic (MZ) twins (upper) and dizygotic (DZ) twins (lower). Standardized scores. Corresponding distribution plots (right) for within-countries (orange) and worldwide (blue) correlations, for MZ (upper) and DZ (lower), across 100 simulations. Shown values (e.g., .38) are mean r’s across simulations.