The longitudinal study and the prospective study are similar for which reason?
a. Each moves forward in time.
b. Each has an experimental focus.
c. Each is able to establish causal relationships.
d. Each selects different samples from the same population at various periods of time.
ANS: A
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A Longitudinal and prospective designs both move forward in time for data collection.
B Longitudinal and prospective studies are not necessarily experimental in design.
C Longitudinal and prospective designs do not necessarily establish causation; the design could be preexperimental, like descriptive design.
D Longitudinal and prospective studies collect from the same group at different points in time.
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