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语言教学 | 普渡大学写作教学系列Research&Citation7-Evaluating Sources(2)

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4、Evaluating Bibliographic Citations

A bibliographic citation provides relevant information about the author and publication as well as a short summary of the text, usually known as the abstract. Depending on where you find your information, the bibliographic citation will vary.

Before you spend a lot of time reading a source, begin by looking at the following information in the citation to evaluate whether it's worth pursuing.

Consider the author, the title of the work, the summary, where it is (e.g., a book, an academic journal, a blog, a social media site), and the timeliness of the entry. You may also want to look at the keywords to see what other categories the work falls into. Evaluate this information to see if it is relevant and valid for your research.

Library Catalog

When searching for sources in a library catalog, the bibliographic citation will often include the author, the publisher, and the physical location of the source in the library (see image below). Using a library catalog is helpful if you are looking for print sources for your research.

Once you find the bibliographic citation, take a look at the author and the publisher. Has this author published other works? Does the publisher list other publications on their website? If you are still uncertain about the credibility, locate the physical source and read bits of it to see if it contains information that’s relevant to your research.

Online Databases

When searching for information in online databases such as EbscoHost or ProQuest, you will most likely find a bibliographic citation entry beneath the title of the source.

If a summary or abstract is not available in the preview, often you can click on the source and view more details (see image below).

Websites

Different websites contain different levels of bibliographic citations. Sometimes it’s possible to find complete author information, while other times you may simply have a username or an author’s initials.

Most websites list the available author information directly under the title of the article or at the bottom of the article.

Sometimes a website does not list an author. If this is the case, it’s important to determine whether the website itself seems credible. If the website is associated with a print publication, or is from a well-known organization, it is probably credible. However, you should read the article to determine whether the information seems valid. On the next page you will find more strategies for determining whether a source is credible.

Understanding the differences in bibliographic citations is an important step as you search for sources to include in your research.


5、Evaluating Digital Sources

Because so much information is now available online, it’s important to know how to navigate digital sources versus print sources. Today, almost every print source has a digital edition (e.g., ebooks, online newspapers), and some academic journals only publish digitally. However, despite the many credible digital sources available today, there are still many unreliable sources available on the internet. Below are some suggestions for evaluating digital texts and a breakdown of the different types of sources available online.

Search Engine Optimization

Search engine optimization (often abbreviated SEO) is a strategy used to increase unpaid views on a website from search engines. By using an algorithm, SEO works by locating keywords and sorting information for relevancy and accuracy. For example, if you were to search “How to change a flat tire” in a search engine, you would most likely get how-to videos and pages, rather than someone selling their car on Craigslist, because the algorithm sorts the webpages based on the keywords you input.

Different search engines may utilize SEO differently, which also means that, depending on what search engine you use, you might have different results appear first. For example, companies that are owned by Google will most likely appear first when searching for something on Google. However, if you used a different search engine, such as Yahoo or Bing, your results may differ.

Understanding SEO is important because it dictates the initial information you’re presented with when using a search engine for your research.

Differences in Domain Extensions

Different websites have different domain extensions, that is, the final string of letters following the period on a website’s domain name. Domain extensions help differentiate the type of websites and the different purposes they serve.

Below is a breakdown of the most common domain extensions:

  • .com⁠—a commercial website

  • .gov⁠—a government owned/operated website

  • .org⁠—a website associated with an organization

  • .edu⁠—a website associated with an educational institution

  • .net⁠—a website used by network providers

While there is no universal rule for whether a website’s domain extension makes it credible, it’s important to know that .com, .org, and .net domain extensions can be purchased and used by anyone. However, the .edu domain extension is reserved only for educational institutions, and the .gov domain extension is only used by governmental institutions.

Determining a website’s credibility can be especially confusing for websites with a .org extension that appear to have a governmental or educational affiliation. For example, the website passportUSA.org appears to contain official instructions for applying for a passport online; however, it is simply a PDF editing site. Because of the .org domain extension, it appears more credible.

On the other hand, some well-known organizations use a .com domain extension. Both National Geographicand TEDuse .com domain extension, despite the fact that they’re large organizations.

It’s important to not necessarily evaluate an online source simply based on its domain extension. As you navigate through different sources, you need to examine the authors and the website’s other credentials before making assumptions simply by the domain extension.

Wikipedia

Wikipedia is a free online encyclopedia, created by the Wikimedia Foundation. Like other encyclopedias, Wikipedia can provide valuable information about certain topics. However, unlike encyclopedias, Wikipedia pages can be edited by anyone, which means that sometimes the information stated is not reliable and is edited for the sake of making a joke (see example below).

In fact, even Wikipedia itself encourages its users to take caution when gathering information from its site. It states: “Users should be aware that not all articles are of encyclopedic quality from the start. Indeed, many articles start out by giving one—perhaps not particularly evenhanded—view of the subject, and it is after a long process of discussion, debate, and argument that they gradually take on a consensus form. Others may become caught up in a heavily unbalanced viewpoint and can take some time—months perhaps—to regain a better-balanced consensus” (see “Researching with Wikipedia”).

While it’s not encouraged to use Wikipedia as one of your main sources, Wikipedia can be used as a jumping-off point for other sources. At the bottom of most Wikipedia pages, you can find a list of sources that will take you to other pages (see image below).

Clickbait

Clickbait is a type of sensationalized advertisement that seeks to attract viewers through catchy or seemingly unbelievable headlines. Most sites that use clickbait use it to simply gain “clicks” on their site.

When looking for sources online, it’s important to recognize which article titles sound like clickbait. Most clickbait articles want to shock the reader, so be aware of words like surprisingalarming, and shockingin titles. Another form of clickbait is a page that challenges the viewer to a quiz or test. These will entice the reader by stating that the reader probably cannotanswer each question correctly.

Understanding which articles are clickbait helps you evaluate your sources for credibility. Because clickbait sources exist simply to promote webpages, they are not considered credible sources.

Social Media

Social media is simply defined as any type of digital space that allows users to create content and share it with others in a social setting. A few of the most common social media platforms are Facebook, YouTube, Twitter, LinkedIn, Tumblr, and Instagram. While social media is not regularly used as a source in research, sometimes you might use a YouTube video or a tweet from a well-known individual.

When evaluating social media sites, it’s important to know more about a user beyond their username. For example, if you were interested in examining how scientists use Twitter as a platform, you might find yourself quoting a tweet by Bill Nye or the physicist Brian Cox. Both of these individuals have blue checks next to their Twitter handles, which means the accounts are verified. However, you might not want to quote a tweet by someone with an anonymous name and a Twitter handle such as @iluvscience321. 

Similarly, YouTube videos can either be posted by a large organization or a single user. If you are interested in using a YouTube video in your research, look at whether the publisher is a larger organization (such as TED or National Geographic) or a single user that only publishes under a username. While not all large organizations produce unbiased information, more well-known organizations will most likely provide more credible information.

In general, while you will probably not use a lot of social media in your research, if you do, try to locate the people or groups behind the usernames. After you identify the person or organization, you can find out more about them and determine their credibility.

Personal Websites

Many people have personal websites, such as blogs, that are not associated with a larger group or organization. Blogs can range in subject, from seasonal fashion tips to discussing every one of Emily Dickinson’s poems. When evaluating a personal website, find out what you can about the author and their affiliations. Some personal websites exist solely to spread propaganda or other biased information.

Podcasts

Podcasts are becoming a much more popular digital medium today. Podcasts are essentially audio files that can be streamed on a computer or mobile device, like portable radio. They are usually part of a series or follow a theme.

Like YouTube videos, podcasts can be valuable resources if used correctly. While almost anyone can produce a podcast, and topics range from discussing tv shows or books like The Bachelor and Harry Potter, other podcasts give in-depth information about science, history, anthropology, and a wide variety of other topics. For example, podcasts like Stuff You Missed in History Class and Historium Unearthia provide information on often-overlooked historical events.

Like most sources, you should try to find out information about the author and cross-check the information in the podcast to see if you can find it elsewhere. Because anyone can produce a podcast, be aware that biased podcasts exist, and some might be used as propaganda.

Online News Articles

It’s possible to find many news articles online, both from digital newspapers and websites that post news articles. When examining online news articles, find out what you can about the organization behind the articles. Different news outlets may have different agendas attached to their reporting. For example, some websites are known for being more left-wing or right-wing.

Online Databases

Often, the most reliable information you will find on the internet will come from online databases. A database is a large collection of data, usually about one specific topic or idea. Some databases contain a broader field of information, while some are narrower. For example, Hoosier State Chronicles is a database that only houses Indiana newspapers, while JSTOR is a database that holds a wider variety of journals and books.

When looking for online sources, using a database helps you find credible information. In order for a source to be included in a database, it usually must go through a screening process that requires individuals to verify the information in the text. Because of this cross-checking process, the articles you find in databases will usually be more reliable than sources you might find simply by looking for them using a search engine.


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