Twin studies reveal higher rates of __________ for anxiety disorders among identical twins than among fraternal twins.

Question

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Concordance rates refer to the percentage of twin pairs that share a particular trait or disorder. Higher concordance rates among identical twins (who share all their genes) compared to fraternal twins (who share only half their genes) suggest a genetic contribution to the development of anxiety disorders. A and D could also be relevant factors, but they are not directly measured by twin studies. B is not a relevant option in this context.

Twin Studies Reveal Higher Rates of __________ for Anxiety Disorders