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Tetrachoric Correlations (and 95% CIs) for Drug Abuse among Adoptive and Biological Parents in Adoptive Families
| Parents | Correlations |
|---|---|
| Adoptive Father – Adoptive Mother | 0.11 (−0.19; 0.41) |
| Adoptive Father – Biological Mother | 0.11 (−0.06; 0.29) |
| Adoptive Father – Biological Father | 0.14 (−0.04; 0.33) |
| Adoptive Mother– Biological Mother | 0.12 (−0.02; 0.25) |
| Adoptive mother – Biological Father | −0.02 (−0.20; 0.17) |
| Biological Mother – Biological Father | 0.48 (0.41; 0.54) |
