Wartburg College. http://knightguides.wartburg.edu/c.php?g=247759&p=2685035
In this age of information technology, it's very important for information consumers to be able to determine which information is true or false, fact or opinion, valid or irrelevant. Not all information is "good" information.
One simple tool to evaluate information is the "C.R.A.A.P. Test"; Currency, Reliability, Authority, Accuracy, & Purpose.
Glenbard. https://sites.google.com/a/glenbard.org/
diglit/home/evaluating-sources
Is your information "CRAAP"py? Use the CRAAP Test to evaluate your sources.
Watch this video to get a good idea of the differences between primary and secondary sources.
OʻBrien, Jessica. Primary and Secondary Sources Short Tutorial. Aug 14, 2015. YouTube. https://youtu.be/pup5eVSbGkE?si=OUk9N__U8baYNJwE