Dr. Kellman finds a near-zero correlation between identical twins' scores on a measure of a personality trait. Dr. Kellman will probably attribute variability in the trait to:
A)shared environmental factors
B)nonshared environmental factors
C)genetic differences
D)heritability

Question

Quizplus · Accepted Answer

Given that the correlation between identical twins (who share nearly identical genetics) on a personality trait is near-zero, it suggests that the variability in the trait is not due to genetic factors but rather to environmental factors that are not shared between the twins. Nonshared environmental factors refer to experiences that are unique to each individual, even among identical twins, and can lead to differences in personality traits.

Dr Kellman Finds a Near-Zero Correlation Between Identical Twins' Scores