Source Types
When evaluating the quality of the information you are using, it is useful to identify if you are using a Primary, Secondary, or Tertiary source. By doing so, you will be able recognize if the author is reporting on his/her own first hand experiences or relying on the views of others.
One easy way to think about the differences between these types of sources is to think of them as concentric rings on a target.
Source Type |
Examples |
When Would I Use This Type? |
---|---|---|
Primary A primary source is a first person account by someone who experienced or witnessed an event. This original document has not been previously published or interpreted by anyone else. |
First person account of an event First publication of a scientific study Speech or lecture Original artwork Handwritten manuscript Letters between two people A diary Historical documents, e.g. Bill of Rights |
Primary sources provide first hand accounts of events that were documented later. A primary source is useful if you want to provide direct evidence of an event or time in history. When you use primary sources you have to start by asking a lot of questions about the source itself. It's important to consider who created the document and for what purpose, among other things. |
Secondary A secondary source is one step removed from the primary original source. The author is reexamining, interpreting and forming conclusions based on the information that is conveyed in the primary source. |
Newspaper reporting on a scientific study Review of a music CD or art show Biography Scholarly books or articles |
Secondary sources are how we often engage with scholarly writings and learn about past events.
Sources that have been published very recently will reflect the current theories and understanding of the past. If you use a secondary source that was published decades ago, it is important to know what subsequent scholars have written on the topic and what criticism they have made about the earlier work or its approach to the topic. |
Tertiary A tertiary source is further removed from primary source. It leads the researcher to a secondary source, rather than to the primary source. |
Bibliography Index to articles Library catalog Encyclopedia entry |
Often textbooks are a good way to think about tertiary sources, they can lead you to additional secondary sources. |
Image Credit: Target free icon created by Fir3Ghost is used under Flaticon.com's license.
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Explanation |
Factual information that provides an overview of or context for a topic. |
Sources that will be analyzed or interpreted |
Critical views from other scholars or commentators that can be agreed with, disagreed with, or built upon. |
The method and theories used to shape a research methodology, approach, or analytical lens |
Examples |
Encyclopedia entries, overviews in books, statistics, historical newspaper articles |
Text of a novel, field observation, focus group data, interviews, performances, results from an experiment |
Scholarly articles, books, critical reviews, editorials |
references to theorists (Foucault, Said) or theories (feminism, critical race theory), information on a research methodology |
Where are you most likely to use these sources? |
Introduction |
Body, Results section |
Body, sometimes in the Introduction or a Literature Review |
Methods section, sometimes referenced in the Introduction or the Body |
Rather than only think about whether a source is primary, secondary, or tertiary; instead think about how you are going to use that source. If you have at least one source in each category, your writing will be stronger and your arguments will be better supported.
Sources can serve more than one function!
For instance, a journal article could:
However, some sources are focused on a single function. For example, an encyclopedia entry on “Alzheimer's disease” is likely to only serve as background information.
Credits:
The BEAM method is from: Bizup, Joseph. “BEAM: A Rhetorical Vocabulary for Teaching Research-Based Writing.” Rhetoric Review 27.1 (2008): 72-86.
This page is adapted from "Source Functions: Background, Exhibits, Argument, Method (BEAM)" from the University of California Merced Library.
Image Credits:
BEAM title image: 10. Column and Beam Details - Hantz House, 855 Fairview Drive, Fayetteville, Washington County, AR Drawings from Survey HABS AR-54 created by the Historic American Buildings Survey is in the Public Domain.
Background icon: Investigation created by Nhor Phai is used under Flaticon.com's license.
Exhibit icon: Encyclopedia created by Talha Dogar is used under Flaticon.com's license.
Argument icon: Application created by Freepik is used under Flaticon.com's license.
Method icon: Pie chart created by Freepik is used under Flaticon.com's license.
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