Which measure allows behavior geneticists to determine the percentage of similarity in phenotype among pairs of family members and is mostly used to examine mental disorders?

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Concordance rate is the measure used by behavior geneticists to determine the percentage of similarity in phenotype, especially in studies examining mental disorders among pairs of family members. It indicates how often both members of a pair, such as twins or siblings, exhibit the same trait or disorder.

Which Measure Allows Behavior Geneticists to Determine the Percentage of Similarity