To conduct linkage studies, researchers attempt to find evidence for
a. an association between life events and specific disorders.
b. similar rates of disorder in MZ and DZ twins.
c. different rates of disorder in adopted children and in their biological and adopted parents.
d. an association between a disorder and another trait within the same family.
Answer: d.
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If 20 of 100 students (20%) who took an exam scored an A on that exam and 70 of 100 students (70%) passed the exam, then the probability that a randomly selected student would have scored an A or would have passed the exam is 20% plus 70% = 90% (the addition rule of probability).
a. true b. false
In this video, Erikson discusses which of the following stages?
a. integrity vs. despair b. intimacy vs. isolation c. initiative vs. guilt d. identity vs. role confusion