If we say that bipolar disorder has a concordance rate of 85 percent,we mean that
A) 85 percent of the time bipolar disorder is the result of genetic influences.
B) if one monozygotic (identical)twin has bipolar disorder,his or her twin has an 85 percent chance of being diagnosed with the disorder as well.
C) 85 percent of the time,bipolar disorder is caused by genetic variables.
D) a parent with bipolar disorder has an 85 percent chance of passing the disorder to his or her children.

Question

Quizplus · Accepted Answer

The concordance rate of 85 percent for bipolar disorder means that if one identical twin has the disorder, there is an 85 percent chance that the other twin will also be diagnosed with the disorder. This suggests a strong genetic influence on the development of bipolar disorder.

If We Say That Bipolar Disorder Has a Concordance Rate