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Twin Studies Have Found Concordance Rates of 63% to 87

Question 84

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Twin studies have found concordance rates of 63% to 87% between identical twins for obsessive-compulsive disorder (OCD) .What does this suggest?


A) OCD prevalence and behaviors vary by culture.
B) OCD has a strong genetic vulnerability.
C) OCD is a learned behavior through classical conditioning.
D) OCD can be attributed to evolutionary causal factors.

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