People who are willing to take part in surveys usually have opinions and views that are different from those who decline to take part. This phenomenon is called:
a. volunteer bias.
b. experimenter's bias.
c. confirmation bias.
d. systematic bias.
Answer: a
Psychology
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Some beta-2 agonists sold for treating asthma have been used by athletes as "nonsteroidal anabolic agents."
Indicate whether the statement is true or false
Psychology
On the basis of twin studies and other kinship evidence, researchers estimate that about __________ of the differences in IQ among children can be traced to their genetic makeup
A) a quarter B) a third C) half D) two-thirds
Psychology