Because the study from the perspective of the sample is not really an answer from the perspective of researchers in research quality is an answer in depth.
It is a study from the perspective of the actual sample and not from the perspective of researchers, the answer is in the quality of research, in-depth answers.
From the point of view of the study because it is a group of Real examples, not from the perspective of researchers in research. The answer is a quality in-depth is the answer