A psychologist is doing research for a pharmaceutical company. The drugs he is testing are numbered so that he does not know what they are, nor does he know which participants are receiving which drugs
Participants are also unaware of differences in treatments. The control that is being used in this study is called a
a. within-subjects control.
b. correlational method.
c. double-blind control.
d. random assignment by chance procedure
Answer: c. double-blind control.
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If a person's comments and behaviors suggest that he or she might be thinking about suicide, asking direct questions about suicide
a. will only put ideas in the person's head. b. should only be done by professionals. c. should be followed by a call to a suicide prevention centers if the answers raise more concern about suicide. d. will usually prevent suicide.
Which type of receptors appear to exert primarily inhibitory feedback actions on neurons?
a. ionotropic receptors b. postsynaptic receptors c. autoreceptors d. heteroreceptors