Regarding ethnic groups and IQs, which of the following statements is FALSE?
a. As a group, Japanese-American children scored above average in IQ.
b. Most psychologists have concluded there is significant scientific evidence that group differences in average IQ are based on genetics.
c. One study found that placing poor African-American children into European-American adoptive families
increased the children's IQs an average of 13 points.
d. Historically, African-American children in the United States scored an average of about 15 points lower on standardized IQ tests than European-American children.
ANSWER: b
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In a stratified sample subgroups in the general population need not be represented in the same proportion in the experimental sample
a. true b. false
The monamine hypothesis of depression states that:
a. There is a decrease in norepinephrine and serotonin activity b. There is an increase in dopamine c. Glutamate deficits are the cause d. Histamine and serotonin deficits are the cause