By , researchers refine the problem under study, clarify possible techniques to be used in collecting data, and eliminate or reduce avoidable mistakes.

Reviewing the literature

Explanation:

Most times when literature's are written it is advisable that they are reviewed. When they are reviewed the author is able to identify better ways to address their stories, clarify techniques and reduce mistakes. This helps the author to be seen as professional when his/her material is accessed by the audience. When the review are not done and mistakes abound, the writer is given a bad name; incompetent.

work yay..other than that pretty good actually it hot though (≧▽≦)

what is the question?