A mystery writer can't decide how the victim will meet his end. One possibility is to have him suffer botulism poisoning, but curare, a poison used by Amazon Indians, is also a possibility. In either case, the victim's death will involve the neurotransmit
a. acetylcholine.
b. GABA.
c. dopamine.
d. norepinephrine.
Answer: a. acetylcholine.
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Students from lower-income households are __________ more likely to drop out of high school than are middle- and higher-income students.
A. two times B. three times C. four times D. five times
If your boss thinks very highly of you in general, she may tend to see even your mediocre projects as excellent work. This would be evidence for
a. the discriminative effect. b. the sampling effect. c. the placebo effect. d. the halo effect.
Which of the following is the best definition of social facilitation?
a. the tendency for some people to have better social skills than others b. the tendency for some people to facilitate the social skills of others c. the superior ability of groups to solve problems compared to individuals d. the tendency for people to perform better when others are present e. the tendency for members of a team to work harder than when they work alone
Undergraduate students who base their self-worth on academic performance often experience
A. depression. B. an increase in self-esteem regardless of grades. C. self-fulfilling prophecies of failure. D. a reduction in stress over exams and other academic work.