dissertation research questions

The research question is one of the most important parts of your research project, thesis or dissertation. It’s important to spend some time assessing and refining your question before you get started.
The exact form of your question will depend on on the length of your project, the type of research, the topic, and the research problem. But all research questions should be focused, specific, appropriately complex, and relevant to a social or scholarly issue.

References:

http://www.scribbr.com/research-process/research-question-examples/