A procedure used to hide the group assignment from the participants in a study to prevent their beliefs about the effectiveness of a treatment from affecting the results is ______.
a. double-blind design
b. tri-blind design
c. multi-blind design
d. single-blind design
Ans: D
You might also like to view...
You observe two strangers in a heated argument that results in a physical fight. You will most likely assume _________.
A. one probably took something and the other is merely trying to get it back B. one has treated the other unfairly C. they are very aggressive individuals D. any of the above are just as likely
Positive emission tomography (PET) scans have shown that certain cognitive therapies can
a. reduce brain activity related to fear. b. help form the union between mind and body. c. work, but only when drug therapy is also used. d. increase overall brain activity. e. increase the volume of some brain structures.
Children's first experience with death is often that of a parent.
Answer the following statement true (T) or false (F)
How are neurotransmitters released into the synaptic gap?
A. Synaptic vesicles open B. Sodium ion channels close C. Dendritic terminals depolarize D. Axon terminals hyperpolarize