The most powerful type of quasi-experimental design that can be considered a before-and-after design is the ______.
A. repeated measures panel design
B. regression–discontinuity design
C. time series design
D. multiple group before-and-after design
B. regression–discontinuity design
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What characteristic distinguishes an alternative rival hypothesis from those hypotheses that are merely alternatives?
a.) An alternative rival hypothesis is mutually exclusive with the proposed hypothesis. b.) An alternative rival hypothesis is more complex than mere alternative hypotheses. c.) Alternative rival hypotheses must be false. d.) An alternative rival hypotheses is more difficult to prove.
What is the advantage of most similar systems design?
a.) differences appear more clearly b.) comparison of the largest possible number of systems c.) fewer languages are necessary for research d.) results are predictable