For any research project, you want to use a variety in types of sources as well as points of view. Some assignments will have certain requirements for the sources, in terms of genre of source (academic, popular), format (video, print) and publication dates.
To research a question in depth, the answer to the question of “how many and what type of sources do I need” is all of them. You need a variety of sources, both in type and point of view, in order to fully (or even partially) explore a research question. Any type of source might be appropriate for a research project, depending on how you use it.
Of course, your instructor may require certain types of sources, so it’s important to understand the differences between types of sources, such as a peer-reviewed article versus a popular one. However, it may also be helpful to think about at what stage of the research project a source may be useful. Reference sources, such as encyclopedias, are useful when reading for background information, whereas more specialized sources, like journal articles, studies, and argumentative pieces, will be more useful when exploring your research question in-depth.
In discussing the usefulness of different types of sources, we find it is helpful to use the BEAM method, developed by Joseph Bizup, BEAM stands for: Background, Exhibit, Argument, Method.
Keep in mind that as you read and learn more through gathering source material, you topic may change or shift, and that is to be expected. Also, keep in mind that you any source may be used in a paper as long as you evaluate it properly and engage with it meaningfully. You can learn more about the BEAM method in the following video:
Bizup, J. (2008). BEAM: A rhetorical vocabulary for teaching research-based writing. Rhetoric Review, 27(1), 72-86.
Hayden, W. & Margolin, S. (n.d.). How to use a source: The BEAM method. Hunter College Libraries. (CC-BY-NC-SA)
Portland State University Library. (2018, November 8). Using your sources: The BEAM research model [Video]. YouTube. (CC-BY-NC-SA)
This work is licensed under a Creative Commons Attribution 4.0 International License.