Good critical readers are always aware of the sources an author uses in her or his text. You should mark sources in the text and ask yourself the following questions:
- Is the source relevant? In other words, does the source work to support what the author is trying to say?
- Is the source credible? What is his or her reputation? Is the source authoritative? What is the source's bias on the issue? What is the source's political and/or personal stance on the issue?
- Is the source current? Is there new information that refutes what the source is asserting? Is the writer of the text using source material that is outdated?