Formulating a Research Topic

Motivation and scope

As master’s and PhD students, we all aspire to conduct quality research. The question many of us are faced with is: how do we formulate a research topic that is well poised for performing quality research? Research topics are meant to encompass the majority or entirety of our work during our graduate career and, when well-defined, can result in opportunities to publish several high-impact academic papers. The effort required to formulate a well-defined research topic is significant, but necessary to avoid running into unforeseen challenges during your PhD. This blog post discusses the concepts that should be considered for anyone looking to define their research topic. While students have varying degrees of autonomy in shaping their research due to funding constraints and advisor expectations, the concepts discussed in this blog post account for these facets and can serve as a framework for any situation.

Overview diagram of a framework for formulating a well-defined research topic.

What is quality research?

Quality research is independent, important, and unique.

This definition identifies a set of requirements that a research topic must meet. These requirements will be discussed in more detail to orient the research topic formulation process.

Independent – Independent research can be conducted entirely by you without assistance from outside sources. While you should actively seek collaborations with others to boost the reach of your work, will you be able to complete your research objectives without relying on resources provided by others? Framing your research topic and objectives in this manner gives you protection to flakey collaborators and will keep you on track to graduate on time. For example, something you may want to avoid is crafting a research topic around the usage of one particular data set maintained by a private company. While initial collaboration talks may go smoothly, you don’t want your ability to pursue your research project in the hands of someone else!

Important – Important research makes a contribution towards answering a specific question, or a gap in knowledge, among a research community that has been posed by several scholars. You may ask yourself: if you carry out your research to completion, will your contributions answer outstanding questions posed by multiple scholars in your research community? Note that the question your work addresses may not be explicitly posed in the literature, but identifying common limitations can help formulate a gap in knowledge that you can work towards filling. Aligning your research objectives with specific and commonly posed questions can increase the chance of your work being cited by other scholars and integrated into practices in industry. 

Unique – Unique research makes a first-of-its-kind contribution. There are several ways in which your research can be unique. For example, uniqueness may be assumed if you contribute the first work to a completely unanswered question in your field. Alternatively, you may make a unique contribution to a question that has already been addressed by approaching it in a new way. Knowledge of your chosen field’s state of the art and previous foundations is useful when checking the uniqueness of your work, which can only be verified by thorough literature review. Regardless of the way your research is unique, it is important to identify the uniqueness of your work within the context of existing work in related areas.

With these three research topic characteristics in mind, the following presents a high level path to formulating your well-defined research topic.

A framework for formulating a well-defined research topic

1. Look inwards

Based on previous experiences in coursework, internships, and extracurricular activities, create a two-column list. The first column lists research fields you found interesting. The second column lists ideas that align with your personal motivations for pursuing a career in STEM research. An example of this list may look like the following:

2. Read Widely

Given the two-column lists you created, start familiarizing yourself with the current state of the art. Starting with articles in popular science media outlets can be effective for initial cursory surveys. Any articles that pique your interest should be followed by deeper dives into related literature in Google Scholar. It is likely that several of the topics in the left column of your list get crossed off quickly when you realize they no longer interest you. Continue this process until a subset of around three areas remains. Your two-column list may then look like this:

Note that the right hand column remains unchanged. You very likely will not be able to address all of your personal motivations for pursuing STEM research in your eventual research topic, but now is when you can start connecting topics you find interesting to research applications that personally motivate you. 

3. Consider funding and lab focus areas

While the research topic definition process should be approached predominantly with your own interests in mind, at this stage, it is important to consider where your funding is coming from. Typically, there will be specific fields your research must overlap with based on your funding source. Schedule a discussion with your advisor to share your topic definition process so far and ask if there are topics you should add to your list based on research group and funding requirements. Based on this discussion, add a third column to the list you’ve created that describes the necessary areas of overlap for your research.

4. Continue reading and form a research statement

At this point you are trying to iterate on combinations identified in your three-column list. You can begin to formulate an overarching research statement from these combinations. Research statements generally have the form “To…by…while…”. This sentence structure explicitly identifies what you are trying to accomplish, how you will accomplish it, and which constraints you will account for. A possible research statement could be defined with one entry from each column, or you may be able to create a topic with multiple entries from each column. In this blog’s example list, a research statement could be the following:

To enable efficient natural disaster response for remote communities by developing an AI-powered rapid response scheduling algorithm for a remote sensing satellite while accounting for limitations to satellite operations imposed by the space environment.

5. Iterate and keep track of your work

You may create a few iterations of overarching research statements like this. As you continue to read focused areas in the literature, formulate a focus area Venn Diagram. By allocating articles in your literature search to portions of the diagram, you can stay organized and keep track of the work you’re doing. For the example statement above, your Venn Diagram could look like this:

Venn diagram of research topic focus areas. The most relevant literature review items can be added to each region of the diagram to track and organize your efforts.

At this point, you are well on your way to formalizing your research topic. The formalization step involves writing research questions, drafting objective statements, and identifying your research contributions. AeroAstro Communications Lab fellows can help you with these next steps through one-on-one appointments!