How did the literature address the question as yours?
What are the strengths and weaknesses of the previous findings? Relatedly, how do you plan to improve?
In order to answer these questions, you'll need to identify a minimum 5 previous works that have addressed the same question as yours and explain how your research can be better than theirs. To find relevant journal articles, you may use ProQuest Central (available at https://ncwc.libguides.com/databases) or Google Scholar (https://scholar.google.com/). You need to enter search terms of your interest.