Which of the Following Projects Best Illustrates the Logistical Challenges

Multiple Choice

Which of the following projects best illustrates the logistical challenges of evaluation research?

A) Researchers may want to apply the findings of their study on Uber driving in New York City to five additional cities across the United States.
B) A study of reduced-cost remedial college classes measures student progress by sorting program applicants into a treatment group,which would receive reduced-cost remedial college classes,and a control group,which would be enrolled in full-priced traditional college courses.
C) In an intervention in factory labor,researchers found 60% of jobs could be downsized or replaced by robots to save corporate profits.Local labor unions might challenge and object to the study's results.
D) To study an intervention in Uber driving,researchers must be able to locate large numbers of Uber drivers,who are often spread out throughout a city,and involve them in research.