A placebo effect occurs when
a. an experimenter finds what he or she expected to discover.
b. participants have not been randomly assigned to experimental and control conditions.
c. participants change their behavior because of their belief that a treatment has an effect.
d. both participants and experimental assistants are unaware of which participants get which treatment.
Answer: c. participants change their behavior because of their belief that a treatment has an effect.
You might also like to view...
etting through a crisis or a rough period in life takes "time, good friends, good genes, good luck, and a good dream system."
a. dreams are "the royal road into the unconscious." b. dreams are "children of an idle brain." c. getting through a crisis or a rough period in life takes "time, good friends, good genes, good luck, and a good dream system." d. everything in a dream is symbolic.
As Jason approaches 40, he notices that he has been putting on weight, and that he is having a more difficult time climbing stairs. He thinks about his grandfather and father who both had large body sizes and needed wheelchairs for mobility toward the end of their lives. Jason resolves to join a gym and start working out on a regular basis. Which factor is providing the motivation for Jason to do this?
A. gender identity B. societal norm C. peer pressure D. feared self
Kedrick is a 12-year-old member of Mehinaku society. He is often sick and stays at home to help his mother rather than fishing with his father and practicing wrestling. Kedrick is likely to be
a. ridiculed and called names like "little girl." b. married earlier than most of his peers. c. considered a tribal religious leader when he reaches manhood. d. more desirable to the women in his village.
According to information-processing, as children grow, they develop better strategies, increased capacity of working memory, and more effective executive function
Indicate whether the statement is true or false