Chunk #23 — Methods — Data analysis — Longitudinal genetic analyses

Source

Stable genetic effects on symptoms of alcohol abuse and dependence from adolescence into early adulthood.

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Secondly, a simplex structure was specified for shared environmental influences allowing for both stable and dynamic influences (submodel 4a). Next, in submodel 4b the shared environmental innovation terms were dropped from the model to test whether shared environmental influences could be described by one factor.