One problem with adoption studies is that the homes in which twins are placed
A. are so very different that comparisons cannot be made.
B. are often very similar because adoptive families are similar in important ways.
C. are highly specialized for adoptive parenting.
D. allow the same genetic influences to emerge.
B
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Often occurring together in people with schizophrenia are
a. traumatic life events and substance abuse. b. traumatic life events and sexual abuse. c. overindulgence during childhood and substance abuse. d. overindulgence during childhood and sexual abuse.
According to Gordon Allport, secondary traits are:
a. less obvious personality traits that do not always appear in an individual's behavior b. personality traits that dominate an individual's life c. a small set of descriptive traits that can be used to accurately describe an individual d. three basic personality factors that exist in all individuals