Using cluster sampling, we divide the population into clusters and then select a sample of individuals from every cluster to participate in the sample.
Answer the following statement true (T) or false (F)
False
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At the national cheerleading contest, all the contestants are seated in one area within the stadium. Although 1,000 students are seated in this area, your eyes discern about 100 groups due to each group of cheerleaders having different color outfits. The way you grouped these students is most likely due to the perceptual principle of
a. continuity. b. nearness. c. similarity. d. contiguity.
Research has demonstrated observational learning in:
A) humans only. B) primates only, including humans. C) humans and birds only. D) humans and a variety of animals.
What is the best explanation for why rats behave differently than golden hamsters toward a conspecific CS for food?
a. Rats have more general process learning ability. b. Rats are more domesticated. c. This is a trick question—rats and golden hamsters behave the same way toward a conspecific CS. d. Rats are social animals whereas golden hamsters are solitary.
Donald is seventy years old. For the past few years, he has developed a memory loss that is getting worse, and his personality has become very erratic. His doctors say he has Alzheimer's disease, but you aren't sure. What finding should most convince you that the doctors are right?
A. A loss of GABA neurons in Donald's brain B. An absence of myelin in Donald's brain C. A loss of acetylcholine neurons in Donald's brain D. Below-normal levels of norepinephrine in Donald's brain