Why is a literature review important for a PhD dissertation?

The literature review is an important aspect of any thesis, whether it be a separate chapter or part of the introduction. It covers important studies, views, ideas, and bodies of work, highlighting gaps or deficiencies in earlier research. It validates the research presented in the thesis. It is advised that you write two versions of the review, one at the beginning and one at the conclusion. Writing the review allows you to obtain a deeper grasp of the area and provide a more authoritative analysis and evaluation of earlier work.

A literature review is of paramount importance for a PhD dissertation for several key reasons:

1. Establishing Research Gap: The literature review helps identify the existing knowledge and research in the field. By reviewing prior studies, it becomes possible to identify gaps or areas where further investigation is needed, thereby establishing the originality and significance of the PhD research.
2. Providing Theoretical Framework: It offers a theoretical foundation for the research, allowing the PhD candidate to contextualize their study within the broader academic discourse. Theoretical frameworks from existing marketing literature reviews can guide the development of research questions and hypotheses.
3. Refining Research Questions and Objectives: Researchers can refine and formulate specific research questions and objectives by examining the literature. This process ensures that the study addresses relevant and meaningful aspects of the subject matter.
4. Methodological Guidance: A empirical literature review of examples helps researchers identify the most appropriate research methods and methodologies based on what has been effective in previous studies. It prevents the duplication of effort and ensures the adoption of best practices.
5. Avoiding Plagiarism and Reinventing the Wheel: A critical literature review ensures that the PhD candidate is aware of existing research, reducing the likelihood of unintentional plagiarism and demonstrating that their work builds upon existing knowledge.
6. Demonstrating Expertise: A comprehensive literature review showcases the PhD candidate's expertise in the subject area. It highlights their understanding of key concepts, theories, and developments in the field.
7. Supporting and Justifying Findings: The literature review provides a basis for interpreting research findings and comparing them with existing results. It strengthens the discussion and conclusions by relating the new findings to the body of knowledge.
8. Enhancing Credibility and Rigor: A well-conducted literature review example for a research proposal indicates that the PhD candidate has thoroughly examined the relevant literature, enhancing the credibility and validity of their research.
9. Fostering Intellectual Dialogue: Engaging with literature fosters intellectual dialogue with other researchers and scholars in the field. This dialogue contributes to the advancement of knowledge and academic community-building.

Check out our blog to learn more about PhD Literature review, How to critically review academic papers in Biological & life sciences.

In summary, a literature review is a critical component of a PhD dissertation as it sets the stage for the research, justifies its importance, guides methodology, and places the findings in the context of existing knowledge. PhD Assistance provides a foundational element that demonstrates the scholarly rigour and expertise of the PhD candidate throughout their academic journey.