A good research question is essential to guide your research paper, project or thesis. It pinpoints exactly what you want to find out and gives your work a clear focus and purpose. All research questions should be:
- Focused on a single problem or issue
- Researchable using primary and/or secondary sources
- Feasible to answer within the timeframe and practical constraints
- Specific enough to answer thoroughly
- Complex enough to develop the answer over the space of a paper or thesis
- Relevant to your field of study and/or society more broadly
In a research paper or essay, you will usually write a single research question to guide your reading and thinking. The answer that you develop is your thesis statement — the central assertion or position that your paper will argue for.
In a bigger research project, such as a thesis or dissertation, you might have multiple research questions, but they should all be clearly connected and focused around a central research problem.
From: Scribbr