When investigators study changes in different ethnic and racial groups across several decades by using Census information in the United States,
a. there are problems interpreting the data because criteria for inclusion in racial categories have changed several times over the past century.
b. the data are usually highly reliable people have always been placed into well-defined categories.
c. it is difficult because the government does not release information from the Census that could be controversial.
d. the data are usually reliable because the Census has always relied on self-categorization, so it has avoided categories that aren't useful.
A
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Indicate whether the statement is true or false
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a. less than a 10% chance that the other twin will also be diagnosed with depression b. a 100% likelihood that the other twin will also be diagnosed with depression c. a 50% or greater chance that the other twin will also be diagnosed with depression d. very little chance that the other twin will develop depression, but he or she will be at greater risk for other psychological disorders
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