How do I structure a doctoral dissertation outline when my advisor wants a thematic rather than chronological layout?

Stop trying to organize your literature review by how studies were done and start organizing by the specific arguments you intend to make. Instead of grouping by methodology, pick three or four core tensions or debates within your field that your research directly addresses. Each of these themes should serve as a chapter that builds a case for why your specific study is necessary. Start your outline with a conceptual framework chapter that defines the key constructs you are studying. Follow this with thematic chapters that each tackle a different angle of the problem. For example, one chapter could focus on the evolution of clinical perspectives on your topic, while the next explores the limitations of current interventions. By the time you reach your own methodology, the reader should feel that your study is the natural, inevitable solution to the gaps you have just mapped out. If you feel like you are repeating yourself, it is likely because you are summarizing individual papers rather than synthesizing ideas. Focus on the conversation between the authors. When you move to a new theme, ask yourself how that specific angle changes the reader’s understanding of the problem. This approach ensures your dissertation reads like a cohesive argument rather than a list of previous research findings.