A researcher wanted to study whether ride share drivers get lower tips than taxi drivers. Which of the following might be a concern in designing this study?
A) The people who use a ride share service might be different from the people who take taxis.
B) The amount of tip given is a hypothetical construct rather than a manifest variable.
C) On bad weather days, more people use both ride share services and taxi services.
D) All of the above are concerns
Correct Answer:
Verified
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