What is the primary role of a literature review in research?

The primary role of a literature review in research is to summarize, analyze, and synthesize existing research. This involves critically evaluating previous studies, theories, and concepts that relate to the current research topic. By doing so, the literature review provides a solid foundation for the new research by highlighting gaps in current knowledge, establishing the context for the study, and demonstrating how the new research will contribute to the existing body of knowledge. It helps clarify the research problem and justifies the need for the current study, guiding the formulation of research questions and methodologies.

Summarizing financial implications or identifying funding sources does not directly relate to the primary purpose of a literature review. While such information may be important for a study's broader context, it is not the main focus of a literature review. Similarly, establishing a methodology is an essential aspect of the research process, but it typically follows the literature review and is informed by the insights gathered during that review. Therefore, summarizing, analyzing, and synthesizing existing research stands out as the essential role of this key component of scholarly work.