Explain any reasons for review of literature in the search investigation

Reviewing literature in a research investigation is crucial for several reasons:

1. Understanding the Existing Knowledge: Literature review helps in understanding what is already known about the topic. It provides a summary of the existing literature, theories, key variables and phenomena, and research methods that have been used.

2. Identifying Gaps: It helps in identifying the gaps in the existing research that your study aims to fill. This could be a new perspective on an old topic or a problem that has not been addressed adequately.

3. Avoiding Repetition: By reviewing the literature, researchers can avoid duplicating work that has already been done. It saves time and resources that might otherwise be wasted on reinventing the wheel.

4. Establishing a Methodology: Literature review can also help in establishing the research methodology. By looking at how others have studied similar topics, researchers can choose the most effective methods, tools, and procedures for their own study.

5. Supporting Your Argument: The literature review provides evidence and support for the argument or hypothesis that is being made. It shows that the researcher is knowledgeable about the topic and has a strong basis for their own research.

6. Providing a Context: Finally, a literature review provides a context for the research. It shows how the research fits into the larger academic discourse and how it contributes to the ongoing scholarly conversation about the topic.