One way to prevent experimenter bias is to be sure that the experimenter and the participants know nothing about who is receiving the experimental treatment and who is not. This is known as ____.?
a. ?experimenter design
b. ?the placebo effect
c. ?a random assignment of variables
d. ?a double-blind design
ANSWER:
d
You might also like to view...
One reason that Helmholtz's discovery of the speed of an electrical impulse along a nerve is important is because it showed that:
a. the speed of a neural impulse is greater than 100 miles per hour b. Galvani's ideas about nerve impulses was wrong c. it is possible to experimentally study the function of the nervous system d. instinct theories were wrong
Arranged marriage seemed to take into consideration the bride and groom's love and attraction to each other as the most important aspect
A. True B. False
Major depression is simply a state of sadness or "the blues."
Indicate whether the statement is true or false
When Freud referred to the sexual drive of babies and young children, he was really referring to the fact that __________.
A. sexual orientation is established from birth B. children focus on their bodies to give them physical pleasure C. children need to be taught about sexual morality from a very early age D. children have genitals that distinguish them as male or female from birth