In the Examining the Evidence section of the text, Mild Cognitive Impairment (MCI) is discussed in the context of
A) whether it is a medical condition or psychological disorder.
B) its role in the treatment of dementia patients.
C) whether it is a precursor of dementia or a separate syndrome.
D) how neuroimaging can be a valuable diagnostic tool for cognitive disorders, especially dementia.
Question 2
Dr. Katz is researching the causes of all phobias. He puts an ad in a newspaper asking for only people who have an intense, distressing fear of snakes to come and participate in his study. The major problem with this is
a. the people who come may not have a phobia.
b. his sample will be too small.
c. he is not getting a representative sample.
d. he doesn't know if people are telling the truth about their fears or not.
Cross-section of a mature root.
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