The evidence from studies of twins and biological and adoptive siblings indicates that shared environmental influences explain approximately _____ percent of individual variations in personality traits.

Question

Quizplus · Accepted Answer

Studies of twins and biological and adoptive siblings have found that shared environmental factors have very little impact on personality traits, explaining only about 0 to 1 percent of the variation in these traits. The majority of the variation is thought to be explained by genetic factors and non-shared environmental influences.

The Evidence from Studies of Twins and Biological and Adoptive