What is the purpose of a literature review in research?

• A. To collect new data.
• B. To publish a paper quickly.
• C. To determine if a question has been previously asked.
• D. To design experiments.

Answer: (C)

In research, a literature review is about surveying what has already been studied on a topic to understand what is known and what isn’t. The key idea is to see whether a similar question has already been asked and explored, and to learn how previous researchers approached it, what they found, and where gaps still exist. This helps you justify your own study, refine the research question, and choose appropriate methods based on what has worked or not in the past. It also helps prevent duplicating work that has already been done. The other tasks in research, like collecting new data, publishing quickly, or designing experiments, come after this stage and are not the primary purpose of the literature review.