Multiple Choice
A state set a minimum grade point average requirement for students receiving financial aid starting in 2005 .A researcher compared college graduation rates before and after 2005 in both that state and other states in the region .This type of research is
A) A natural experiment
B) A cross- sectional study
C) A case-control study
D) A difference-in-differences study
Correct Answer:
Verified
Correct Answer:
Verified
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