Compared to fraternal twins, identical twins are much more similar in:

Correct answer: D. all of the above

  • A. neuroticism
  • B. temperament
  • C. extroversion
  • D. all of the above

Explanation

Identical twins share virtually all of their genes, so they tend to resemble fraternal twins more strongly in temperament and personality traits such as neuroticism and extraversion. This supports a genetic contribution, although environmental differences still matter.

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