Chunk #11 — Methods — Analytic Plan — Nature of nurture design.
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Models were fit using the structural equation modeling package OpenMx47 in R48. A total of 16 models were tested: all combinations of 4 alcohol use phenotypes (AUDSx, MaxDrinks, Initiation, and Intoxication), 2 parental relationship mediators (parental relationship discord and divorce), and 2 ancestry groups (EA and AA).