Eysenck used data from _________ to support his claim for biological differences in his three superfactors.

Question

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Eysenck used data from human twins to support his claim for biological differences in his three superfactors. He conducted a number of twin studies which showed that identical twins, who share 100% of their genes, are more similar on measures of personality than fraternal twins, who share only 50% of their genes. This suggests that genetic factors play a role in influencing personality traits, including those that Eysenck identified as part of his personality dimensions.

Eysenck Used Data from _________ to Support His Claim for Biological