A nurse researcher would decide to use a retrospective or ex post facto study for which reason?
a. Obtaining informed consent is not an important issue.
b. There is maximal opportunity to manipulate the independent variable.
c. The dependent variable is measured at multiple times to examine maturation.
d. The dependent variable has already been affected by the independent variable.
ANS: D
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A Informed consent may be necessary in retrospective studies given some research topics.
B A retrospective study does not involve the manipulation of variables.
C Effect on the dependent variable has occurred already, so maturation is not an issue.
D In an ex post facto study the dependent variable has already been affected.
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