Multiple Choice
A researcher compared the academic success of high school students who had received free tutoring during elementary school years with the success of high school students who were similar on major characteristics but did not receive free tutoring. The purpose was to determine the effects of free tutoring on academic success. What type of research design is this?
A) causal-comparative
B) correlational
C) longitudinal
D) experimental
Correct Answer:

Verified
Correct Answer:
Verified
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