This is the evaluation step of research. Not all information is equally valuable or useful. Save time by selecting resources that provide the specific information, research, examples, or data that you need.
A good question to ask might be: Is this source appropriate and acceptable for this particular assignment?
Just because you found some information doesn't mean that you found good or appropriate information. For many college assignments, you will need to find evidence that supports your thesis.
Evidence can be defined as information that is unbiased, factual, and relevant to a topic.
Instructors may put limits on the types of sources you are required to use for a specific assignment. This is to encourage students to find the most useful and thorough sources of information.
Main Point: You should read and evaluate your sources to determine which ones provide accurate and relevant information on the topic.