Even when twin studies find that monozygotic twins have higher concordance rates than dizygotic twins, it is possible these results are not due to genetics but to the possibility that
a. DZ twins are usually treated very similarly.
b. MZ twins may be treated more similarly than DZ twins.
c. MZ twins are easier to locate and study.
d. DZ twins are more likely to live in similar environments.
Answer: b.
You might also like to view...
Describe how Baddeley's working memory model functions when children are trying to remember a list of random words.
What will be an ideal response?
Pierre received an A on his first calculus test and bragged about how smart he is at math. On his second calculus test, he received a C and complained about how hard the professor made the exam. Pierre's attributions about his grades best illustrate
a. the fundamental attribution error b. the self-serving bias c. actor-observer bias d. unrealistic optimism
Which of the following accurately describes an empirical probability distribution? It is based on
a. a theoretical model of the relative frequency of events in a population. b. the assumption the relative frequencies from observed samples represent those in the population. c. determining the relative frequencies of all events in a population. d. determining the relative frequencies of all events in a sampling distribution.
Researchers hypothesize that the most likely mechanism by which alcohol stimulates aggression is its
A. side effect of temporarily reduced critical thinking ability. B. tendency to increase circulating levels of fight-or-flight hormones. C. tendency to cause disorientation and therefore fearfulness. D. General disinhibiting effects on behavior.