Compared to other psychoactive substances, why is it more difficult to clearly define the effects of using bath salts?
A. The ingredients in various products differ.
B. The drugs affect numerous neurotransmitters.
C. The product's legal availability limits research.
D. The effects are primarily due to user expectations.
Answer: A
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Daneman & Carpenter found that people with a working memory span of 2 got ____ percent correct in the "7 ago" condition of their pronoun test, but people with a memory span of 5 got ___ percent correct on the same test under the same conditions
a. 0; 100 b. 20; 80 c. 40; 60 d. 60; 40
Dr. Limmex is trying to win FDA approval for a new drug to treat anxiety. Dr. Limmex claims that 14% of the people who took this new drug reported reduced anxiety; however, other researchers claim that 14% of patients who receive no treatment also report reductions in their anxiety levels. It appears that the patients who improved after taking Dr. Limmex's drug
a. had a self-report bias. b. may have been experiencing placebo effects. c. were a non-representative sample. d. should have been placed in the control group, rather than the experimental group.