"The Big Picture: How Satan Uses Our Human Nature Against Us" 2

The illusory truth effect (also known as the validity effect, truth effect or the reiteration effect) is the tendency to believe information to be correct after repeated exposure.[1] This phenomenon was first identified in a 1977 study at Villanova University and Temple University.[2][3] When truth is assessed [i.e., when any claim is evaluated], people rely on whether the information is in line with their understanding or if it feels familiar. The first condition is logical as people compare new information with what they already know to be true. Repetition makes statements easier to process relative to new, unrepeated, statements, leading people to believe that the repeated conclusion is more truthful. The illusory truth effect has also been linked to "hindsight bias", in which the recollection of confidence is skewed after the truth has been received.