A drug supplier boasted of having a drug that one could inject, snort, or even drink it in tea. What drug was he referring to?
a. cocaine c. methylphenidate
b. heroin d. none of these
A
Psychology
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Natural chemicals in the brain that produce effects similar to those of morphine and other opium-derived drugs are called
A. amphetamines. B. depressants. C. endorphins. D. ecstasy.
Psychology
According to the text, which of the following is NOT an essential variable found in a psychological experiment?
a. mediating variable b. independent variable c. extraneous variable d. dependent variable
Psychology