Even when identical twins are reared apart, they still tend to be very similar in personality. How is this strong evidence that genes contribute to personality?
a. Identical twins who were reared apart were most likely treated in very similar ways.
b. The similarities remain, even though there were probably significant differences in how the siblings were raised.
c. There are fewer similarities when twins are reared together.
d. Actually, identical twins who are raised apart show very little similarity.
Answer: B
Rationale: Twin studies conducted on identical twins who were reared apart yield the same basic findings about personality as studies of twins who were reared together.
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What is the literal meaning of the word alexithymia?
a) without words for feelings b) excessive emotion at inappropriate time c) experiences several emotions simultaneously d) confuses terms for different emotions and reacts inappropriately
Twin studies make comparisons between the measurements of
A) identical twins only. B) nonidentical twins only. C) identical twins and nonidentical twins. D) identical twins, nonidentical twins, and nontwin siblings.