A primary reason for choosing a group-comparison research design is that
a. the researchers are unable to manipulate the dependent variable.
b. the researchers are unable to manipulate the independent variable.
c. the statistical tools that are available for this design are more powerful than for an experimental
design.
d. All of the above.
b
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Indicate whether this statement is true or false.
Which of the following Supreme Court decisions deemed the policy of "separate but equal" educational opportunities as unconstitutional?
a. Plessy v. Ferguson (1896) b. Lau v. Nichols (1974) c. Brown v. Board of Education (1954) d. Engle v. Vitale (1962)