What causes the headaches associated with caffeine withdrawal?
a) Increased blood flow to the brain
b) Reduced adenosine in the central nervous system
c) Caffeine metabolites, which are toxic to neurons
d) Dehydration from reduced liquid intake
Ans: a) Increased blood flow to the brain
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It is very rare that a researcher will observe the entire population in a research study, so samples are almost always used in order to represent the population in the study by collecting data from a realistic number of individuals.
Answer the following statement true (T) or false (F)
Humanistic theorists contend that abnormal behavior
a. is the result of unconscious processes. b. is the result of conditioning. c. develops from encountering obstacles on the road to personal growth. d. involves distorted cognitions as well as learning influences. e. results from the stress of coping with poverty and social disadvantage.
“No taxation without representation” is an outcry against procedural injustice.
a. True b. False
Nina learned to use sign language when she had a hearing-impaired roommate. Now her roommate has moved out, and Nina no longer practices signing. Based on the results from Ebbinghaus' studies, which investigated the typical pattern of forgetting, if Nina's memory for signs is tested several times over the next few years, you should predict that:
a. very few signs will be forgotten early, but later on there will be a rapid decline in the number of signs she is able to use correctly b. there will be a constant steady decline in the number of signs she is able to use correctly c. most signs will be forgotten early, and there will continue to be a slow decline in the number of signs she is able to use correctly d. most signs will be forgotten early, but later there will be a slow steady increase in the number of signs she is able to use correctly