Which statement is TRUE regarding chunking?
A. ?Chunking makes it easier to remember seven bits of information in short-term memory, but it does not actually increase the original number of bits of information that can be stored effectively. ?
B. Chunking can increase the efficiency of short-term memory, but as the size of chunks increase, the number of chunk that can be stored effectively will decrease.
C. Chunking can increase the capacity of short-term memory to an average of 16 bits of information. ?
D. Chunking, if done effectively, can make the capacity of short-term memory virtually unlimited.
Answer: B. Chunking can increase the efficiency of short-term memory, but as the size of chunks increase, the number of chunk that can be stored effectively will decrease.
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Jamal is asked to describe himself. Which of Jamal's statements represents his social identity?
a. I am an African American. b. I see myself as a conservative person with a strong belief in tradition. c. I am intelligent and creative. d. I think of myself as a highly sociable person. e. I am someone who has little regard for social status.
Research indicates that marijuana use is least associated with which symptom?
a. ?severe withdrawal symptoms b. ?motor impairment c. ?reductions in creativity d. ?lasting impairments in reasoning and memory
Phencyclidine (PCP) is a potent glutamate antagonist that is known to produce psychotic behavior in humans. Given what you know about stroke, what would happen if somebody used PCP right after a stroke?
A. It would increase the damage initiated by the stroke. B. It might have a protective effect against further cell death, but the psychotic side effects would be problematic. C. It would not produce any psychotic symptoms due to stroke-related changes in brain biochemistry. D. It would have no observable effects on cell health or psychotic behavior.
If you have 15 red socks (individual, not pairs), 24 green socks, 17 blue socks, and 100 black socks, what is the probability you will reach in the drawer and randomly select a pair of green socks? (Assume sampling without replacement.)
a. 0.3022 c. 0.0228 b. 0.3077 d. 0.0227