collage of ports

This site will be taken down June 30, 2018.

The Penn Online Research Tutorial (PORT) site was built with old software that is neither sustainable nor secure.
The pages have not been maintained, but they can be consulted for historical reference on the Internet Archive.
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Accuracy
Even if a work is credible, it may not be accurate. It might rely on or present incorrect information. This is a particular problem when the work is old, emotionally charged or addresses a disputed or unclear issue. Look for the following signs to determine whether a work is accurate:

Signs of Accuracy

  • the work uses facts and presents results that agree with your own knowledge of the subject

  • the work uses facts and presents results that agree with those of other specialists in the field

  • the work provides clear explanations of how data was gathered and results were reached

  • the work provides citations and detailed explanations of reasoning

  • the work addresses theories and facts that may negate the main thesis
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