The RADAR Framework is a tool to help you remember the criteria used to evaluate the quality, credibility, and relevance of the information you find. RADAR is not a yes/no test, or a be-all and end-all guide. You may not be able to answer each of these questions for each source you find. Use RADAR to consider the overall quality of the information you have found.
Relevance – How relevant is the information to your assignment? Does it meet your research needs?
Authority – Who created the information and where is it published?
Date – When was the information first published or last updated?
Appearance – How does the information appear? How much detail are you given about how the study was conducted?
Reason (for creation) – Why was the information published?