The concept of questioning authority according to Meszaros is that just because a person of a higher level in an institution tells their underlings or students to think a certain way and believe in their teachings, it may not be correct. If one gathers the right information for themselves, that is the best way to learn something.
There are a lot of misinformation being spread because of biases and lack of credible sources due to lack of interest to search for legitimate information. People in general also tend to believe too heavily on someone who is considered an authority on a subject without doing any independent research and finding their own conclusions. Meszaros studied undergraduates and was able to make these conclusions based on their attention or lack there of and linked it to problems such as these.