Which of the following statements is true regarding new discoveries about genotypes and phenotypes?
Genes affect only a handful of behaviors.
Most environmental influences on children raised in the same home are not
shared.
People tend to choose friends and associates based solely on social
interactions.
In nonidentical twins, genes elicit responses that are not explained in our
current understanding.
Most environmental influences on children raised in the same home are not
shared.
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Tim has been worried about his grades for more than three months. After hearing about the diagnosis of generalized anxiety disorder, he becomes convinced that he has the disorder himself. After seeing a mental health professional, what is he told?
a. He is actually suffering from the early stages of panic disorder. b. His concern over grades is more indicative of obsessive-compulsive disorder. c. He does not meet the criteria for generalized anxiety disorder in terms of length of time and number of worries. d. The focus of his worry suggests that he is suffering from a phobic reaction rather than a generalized anxiety disorder.
Which of the following survey methods has the lowest response rate?
a. Interview b. Email c. Mail d. The three have equal response rates