Step-2 Reviewing Literature

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This educational video provides a comprehensive guide on the second step of the research process: reviewing the literature. The lecture begins by defining literature review as the examination of existing research to understand what is already known about a topic. It outlines two main objectives: broadening the researcher's knowledge and enhancing the clarity and focus of the research problem. The video then details a three-stage procedure for conducting a literature review: Stage 1 involves searching for relevant literature using credible sources like PubMed, Google Scholar, and JSTOR; Stage 2 requires critically evaluating and synthesizing the information to identify key findings, methodologies, and gaps; and Stage 3 focuses on developing theoretical and conceptual frameworks to guide the research. The presentation concludes with a practical demonstration of using Google Scholar to search for academic articles, showing how to find and access relevant studies on a topic like 'AI Algorithms'.

Chapters

1. 0:00 – 2:00 00:00-02:00

   The video introduces 'Step 2: Reviewing Literature' as a crucial part of the research process. The on-screen text defines it as examining existing research to understand what is already known about a topic. The lecture explains that this process involves identifying, analyzing, and synthesizing information to build upon existing knowledge, avoid duplication, and refine research questions. The main objectives are listed as '1. Broadening Knowledge' and '2. Enhancing Clarity and Focus'. The instructor uses the example of studying caffeine's impact on memory to illustrate how reviewing previous studies can provide a solid foundation and help identify research gaps, such as the lack of studies on long-term memory effects.

2. 2:00 – 5:00 02:00-05:00

   The video continues to elaborate on the objectives of reviewing literature. It explains that a literature review broadens the researcher's understanding of the research problem and helps them avoid duplicating previous work. The second objective, enhancing clarity and focus, is explained by showing how examining previous studies can reveal gaps and inconsistencies, which helps the researcher refine their own research problem. The instructor provides a concrete example: while many studies focus on caffeine's effect on alertness, fewer have explored its impact on long-term memory, which gives the researcher a clearer focus. The slide also introduces two additional benefits: 'Improving Research Methodology' by learning about different research designs, and 'Contextualising Findings' by comparing new results with existing knowledge.

3. 5:00 – 10:00 05:00-10:00

   The video presents a detailed three-stage procedure for reviewing literature. Stage 1, 'Searching Existing Literature', involves using credible sources like books, journal articles, and databases such as PubMed, Google Scholar, and JSTOR. Stage 2, 'Reviewing and Synthesising the Literature', requires critically evaluating the information to note key findings, methodologies, and gaps. Stage 3, 'Developing Theoretical and Conceptual Frameworks', involves using the insights from the literature to build a framework that guides the research. The instructor emphasizes that this framework helps structure the study and aligns it with existing theories. The slide also lists 'Main Sources of Literature Review', including books, journals, and internet sources, with a note that peer-reviewed journals from reputable institutions are preferred.

4. 10:00 – 12:13 10:00-12:13

   The video transitions to a practical demonstration of the literature search process. The instructor navigates to the Google Scholar website, which is shown on screen. The search bar is used to enter the query 'AI ALGORITHMS'. The results page displays a list of relevant academic articles, including titles like 'Communication-efficient edge AI: surveys, tutorials, and explorations' and 'Decoding student cognitive abilities: a comparative study of explainable AI algorithms'. The instructor then clicks on one of the articles, 'Decoding student cognitive abilities...', to show how to access the full text and view the article's structure, including sections like Abstract, Introduction, and Methodology. The video concludes by stating that after learning about reviewing literature, the next step is the identification of variables in the research process.

The video provides a structured and practical guide to conducting a literature review, a foundational step in academic research. It effectively combines theoretical explanation with a real-world demonstration. The lecture progresses from defining the purpose and objectives of a literature review—broadening knowledge and enhancing focus—to a clear, three-stage procedural framework. The use of a concrete example (caffeine and memory) makes the concepts relatable, while the demonstration of using Google Scholar provides a valuable, hands-on skill. The synthesis of information from the slides and the live screen recording creates a comprehensive learning experience, emphasizing that a thorough literature review is not just a summary but a critical process for building a robust and well-informed research project.