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Source Evaluation: Getting Started

This guide explains different types of sources and evaluation methods for research.

Understanding different types of sources will help you be a more efficient and effective researcher.

Types of Sources

Creative Commons License
"Know Your Sources" by Portland Community College is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Information Sources Take Different Lengths of Time to Produce

Information Timeline Graphic by adstarkel. Used under CC BY-NC-SA 2.0

The speed at which information is produced also affects the number of sources an author consults and cites.