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Chunk #13 — Methods — Statistical Analyses

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Divergent responses of the amygdala and ventral striatum predict stress-related problem drinking in young adults: possible differential markers of affective and impulsive pathways of risk for alcohol use disorder.
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AUDIT scores was slightly positively skewed (skewness = 0.963, kurtosis = 0.833). Nonetheless, skewness and kurtosis of this magnitude are still below the recommended cut-off for linear regression analysis,44 thus we have conducted all our analyses using raw AUDIT scores. Notably, however, our results did not substantially change when we repeated all analyses using a square root transformation of AUDIT resulting in a more normalized distribution (skewness = −0.307, kurtosis = −0.485; data available upon request).