Tweaking the Research Question
Remember, too, that a research question is a beginning point to writing your paper. Once you start digging more deeply into the research process and start drafting your paper, you may find that the focus of your question shifts somewhat. Maybe you thought you were going to do a Why question, but as you research, you find that the most interesting material really relates to a How question. That’s OK! You're not absolutely committed to your original writing and focus.
Keep in mind, though, that you don’t want to go off into another direction entirely (for example, switching from a focus on the use of anti-aircraft guns during the Blitz to the process and perils of evacuating the children of London during the Blitz). Tweak, but don’t put yourself in a position where you need to start all over by changing your entire direction. You’ll find lots of interesting material related to your topic. Rather than changing direction entirely, however, save some of that intriguing but different material for a future paper that examines another aspect of your topic.