The research experiment is superior to the ex post facto research design when the
researcher:
A. Must avoid influencing the variables under study and therefore avoid biasing the
results.
B. Needs to cause variables to be changed or held constant in keeping with specified
research objectives.
C. Is limited to hold all factors constant by selection of subjects according to strict
sampling procedures and statistical manipulation of findings.
D. Decides to use the design more common to research in the social sciences and
business.
A case study is one that _____.
A. attempts to capture a population’s characteristics by making inferences from a
sample’s characteristics and testing resulting hypotheses
B. emphasizes a full contextual analysis of a few events or conditions and their
interrelations
C. discovers answers to the questions who, what, when, where, or how much
D. attempts to reveal why or how one variable produces changes in another
E. provides repeated measures over an extended period of time