Which of the following will yield nonexperimental data?
A) A clinical trial for determining the efficacy of a new drug
B) Crop yields from plots subject to different types of fertilizers
C) Investment performance over the last ten years of several portfolio managers
D) None of the answers is correct.

Question

Quizplus · Accepted Answer

Investment performance over the last ten years of several portfolio managers is an example of nonexperimental data, as it is obtained through observational study rather than a controlled experiment. A clinical trial (A) would yield experimental data, and crop yields (B) could potentially be experimental if the crops were grown under controlled conditions with different types of fertilizers.

Which of the Following Will Yield Nonexperimental Data