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

Table 1.

Overview of Input Parameters and Simulated Data for Well-Being

Input parameters Simulated data
Country Country M Country SD Correlation
Twin1–Twin2
Twin pair Zygosity Well-being
Twin 1
Well-being
Twin 2
 1  3.2  1.7 r ≈ .38
 (MZ)
1 MZ 1.7 2.8
2 MZ 2.9 4.0
. . . MZ . . . . . .
1,000 MZ 3.1 2.9
r ≈ .19
 (DZ)
1 DZ 1.4 3.6
2 DZ 5.9 5.0
. . . DZ . . . . . .
1,000 DZ 4.1 5.9
 2  4.8  2.7 r ≈ .38
 (MZ)
1 MZ 5.1 6.2
2 MZ 4.9 4.0
. . . MZ . . . . . .
1,000 MZ 5.3 6.9
r ≈ .19
 (DZ)
1 DZ 4.7 3.8
2 DZ 5.9 8.0
. . . DZ . . . . . .
1,000 DZ 6.1 4.9
 3  5.1  2.0 r ≈ .38
 (MZ)
1 MZ 3.7 4.8
2 MZ 5.9 7.0
. . . MZ . . . . . .
1,000 MZ 5.1 3.9
r ≈ .19
 (DZ)
1 DZ 3.7 4.8
2 DZ 2.9 6.0
. . . DZ . . . . . .
1,000 DZ 7.1 4.9

Note: Table presents simplified overview of data matrix. Total N (countries) = 157; N (twin pairs per country) = 2,000; Total N = 314,000. MZ = monozygotic; DZ = dizygotic.