How did Donald Trump win the Republican nomination, despite clear evidence that he had misrepresented or falsified key issues throughout the campaign? Social scientists have some intriguing explanations for why people persist in misjudgments despite strong contrary evidence. …
This literature about misperception was lucidly summarized by Christopher Graves, the global chairman of Ogilvy Public Relations, in a February 2015 article in the Harvard Business Review, months before Trump surfaced as a candidate. …
Graves’s article examined the puzzle of why nearly one-third of U.S. parents believe that childhood vaccines cause autism, despite overwhelming medical evidence that there’s no such link. In such cases, he noted, “arguing the facts doesn’t help — in fact, it makes the situation worse.” The reason is that people tend to accept arguments that confirm their views and discount facts that challenge what they believe. CONT.
David Ignatius, Washington Post