In a paper recently published in the Journal of Experimental Psychology, Yale researchers conducted a series of experiments to test how much internet connectivity affects a person’s sense of their own intelligence. In one test, the internet group were given a website link which gave the answer to a question while a control group were given a print-out of the same information. When the two groups were quizzed later on an unrelated question, the Internet-searching group believed they were more knowledgeable even though they were not allowed to look up the correct answer. According to the researchers, it is a new take on the Dunning-Kruger effect, in which individuals believe they possess abilities or intelligence far greater than what they, in fact, do. The illusion of knowledge from Internet use appears to be driven by the act of searching.

You can read more about these experiments here.