The most effective approach to estimate the heritability of a trait or behavior is to compare blood relatives within families.

Name: The most effective approach to estimate the heritability of a trait or behavior is to compare blood relatives within families.
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Quizplus · Accepted Answer

Comparing blood relatives within families can be confounded by shared environmental factors. Twin studies, especially comparing identical and fraternal twins, are more effective for estimating heritability.

The Most Effective Approach to Estimate the Heritability of a Trait