The CCOW method can be used to evaluate any source for appropriateness. Below is an overview on how to apply the method, see the guide for more detail.
Credentials - Investigate the credentials of whoever created the information with questions like:
Claims - What claims are they making? Is the information they're providing accurate? Can we verify its accuracy?
Objectives - What did they hope to accomplish by creating the information?
Worldview - How might your view on this topic influence your approach? How could your perspective influence how you interpret a topic?