Create a framework for your thesis proposal. The framework outlines what the topic of your thesis will cover, the hypothesis you formulated, how you will collect the data and how it will be analyzed.
Include in your thesis proposal a title page, abstract, table of contents, introduction, thesis statement, preliminary results, a time table of your work plan and list of references. In the introduction, describe the research you will be doing and how it relates to your field. Generally, a thesis proposal is about 20 pages.
Stay in contact with your committee while you create your thesis proposal. Inform them of any changes you consider and listen to their feedback.