Multiple Choice
Last year the state increased the speed limit on one section of a highway from 55 to 65 mph.To evaluate the effect of the change,a researcher gathered accident reports for six months before the change and for six months after the change.This is an example of
A) a time-series design.
B) an interrupted time-series design.
C) a cross-sectional design.
D) a longitudinal design.
Correct Answer:
Verified
Correct Answer:
Verified
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