Taking politicians purely at "face value" can frequently predict their success in elections, according to a study by Princeton researchers published in the June 10 issue of Science.
Participants asked to choose which political candidate in a race seemed more competent — based solely on the candidates' photos — accurately predicted the outcome of 71.6 percent of U.S. Senate races in 2000, 2002 and 2004.
Despite the age-old admonition not to "judge a book by its cover," we routinely make important judgments about human traits based on instant, superficial impressions of peoples' faces.