The next step in DAPPR is to score your author on a scale of 1-3 based on the criteria above. If your source has multiple authors, it's best to score all of them, but your professor may allow you to only score the first author listed.
You need to find out:
This video shows you how to look up the credentials of the author of a scholarly journal article.
This video shows you how to look up the credentials of the author of a book.
This video shows you how to look up the credentials of the author of a webpage or website.