In a set of identical twins that have been raised together,one of them develops schizophrenia,but the other does not.Which of the unifying themes discussed in the text is this illustrative of?
A) Psychology is empirical.
B) Psychology evolves in a sociohistorical context.
C) Heredity and environment jointly influence behavior.
D) Our behavior is shaped by our cultural heritage.

Question

Quizplus · Accepted Answer

This situation illustrates the theme of the joint influence of heredity and environment on behavior. The fact that the twins have the same genetic makeup and were raised together suggests that their environment was very similar, yet only one twin developed schizophrenia. This suggests that genetics played a role in the development of the disorder, but environmental factors likely also contributed.

In a Set of Identical Twins That Have Been Raised