As you gather sources for your research, you’ll need to know how to assess the validity and reliability of the materials you find.
Keep in mind that the sources you find have all been put out there by groups, organizations, corporations, or individuals who have some motivation for getting this information to you. To be a good researcher, you need to learn how to assess the materials you find and determine their reliability—before deciding if you want to use them and, if so, how you want to use them.
Whether you are examining material in books, journals, magazines, newspapers, or websites, you want to consider several issues before deciding if and how to use the material you have found.