Adapted from: Plagiarism; What It is and How to Recognize and Avoid It, by The Writing Tutorial Services, Indiana University, Bloomington, Indiana, with permission. Plagiarism and Appropriate Use (PDF pamphlet)
In college courses, we are continually engaged with other people's ideas: we read them in texts, hear them in lecture, discuss them in class, and incorporate them into our own writing. As a result, it is very important that we give credit where it is due. Plagiarism is using others' ideas and words without clearly acknowledging the source of that information.
Statement from Notre Dame's Academic Code of Honor Handbook.
To avoid plagiarism, you must give credit whenever you use:
Here's the original text, from page 1 of Lizzie Borden: A Case Book of Family and Crime in the 1890s by Joyce Williams et al.:
The rise of industry, the growth of cities, and the expansion of the population were the three great developments of late nineteenth century American history. As new, larger, steam-powered factories became a feature of the American landscape in the East, they transformed farm hands into industrial laborers, and provided jobs for a rising tide of immigrants. With industry came urbanization the growth of large cities (like Fall River, Massachusetts, where the Bordens lived) which became the centers of production as well as of commerce and trade.
Here's an unacceptable paraphrase that is plagiarism:
The increase of industry, the growth of cities, and the explosion of the population were three large factors of nineteenth century America. As steam-driven companies became more visible in the eastern part of the country, they changed farm hands into factory workers and provided jobs for the large wave of immigrants. With industry came the growth of large cities like Fall River where the Bordens lived which turned into centers of commerce and trade as well as production.
This is unacceptable paraphrasing because the writer has:
If you do any or all of these things, you are plagiarizing.
NOTE: This example is also problematic because it changes the sense of several sentences (for example, "steam-driven companies" in the second sentence misses the original's emphasis on factories).
Here's an acceptable paraphrase:
Fall River, where the Borden family lived, was typical of northeastern industrial cities of the nineteenth century. Steam-powered production had shifted labor from agriculture to manufacturing, and as immigrants arrived in the US, they found work in these new factories. As a result, populations grew, and large urban areas arose. Fall River was one of these manufacturing and commercial centers (Williams 1).
This is acceptable paraphrasing because the writer:
Here's an another acceptable paraphrase, using a quotation and paraphrase together:
Fall River, where the Borden family lived, was typical of northeastern industrial cities of the nineteenth century. As steam-powered production shifted labor from agriculture to manufacturing, the demand for workers "transformed farm hands into factory workers," and created jobs for immigrants. In turn, growing populations increased the size of urban areas. Fall River was one of these manufacturing hubs that were also "centers of commerce and trade" (Williams 1)
This is acceptable paraphrasing because the writer:
In the Fall of 2002, the University joined Turnitin.com to provide assistance to faculty checking possible plagiarism from the internet. However, due to the very limited ways in which Turnitin has been used over the past seven years, the University has decided to drop its institutional subscription and to provide individual licenses on an as-needed basis. Faculty members can get these individual subscriptions of Turnitin.com at the university's expense.
Other highly effective alternative means of detecting plagiarism include Google (simply run a search on suspect passages) and WCopyfind, a freeware program available for download at the following site: http://plagiarism.phys.virginia.edu/Wsoftware.html For assistance purchasing an individual license to Turnitin.com, please contact Jeanne Bowen, Officer Assistant in the Provost's Office. Office (email@example.com; 631–5716).
Common Knowledge: facts that can be found in numerous places and are likely to be known by a lot of people.
Example: John F. Kennedy was elected President of the United States in 1960.
This is generally known information. You do not need to document this fact.
However, you must document facts that are not generally known and ideas that interpret facts.
Example: According the American Family Leave Coalition's new book, Family Issues and Congress, President Bush's relationship with Congress has hindered family leave legislation (6).
The idea that "Bush's relationship with Congress has hindered family leave legislation" is not a fact but an interpretation; consequently, you need to cite your source.
Quotation: using someone's words. When you quote, place the passage you are using in quotation marks, and document the source according to a standard documentation style.
The following example uses the Modern Language Association's style:
Example: According to Peter S. Pritchard in USA Today, "Public schools need reform but they're irreplaceable in teaching all the nation's young" (14).
Paraphrase: using someone's ideas, but putting them in your own words. This is probably the skill you will use most when incorporating sources into your writing. Although you use your own words to paraphrase, you must still acknowledge the source of the information.