Based on evidence from twin studies, the heritability of alcohol dependence is estimated to be
A) 20-30 percent.
B) 50-60 percent.
C) 70-80 percent.
D) 90-100 percent.

Question

Quizplus · Accepted Answer

Studies have consistently found that the heritability of alcohol dependence is between 50-60 percent, meaning that about half of the risk for developing alcohol dependence is influenced by genetic factors. While environmental factors also play a role, the high heritability suggests that genetics are a significant factor in the development of this disorder.

Based on Evidence from Twin Studies, the Heritability of Alcohol