“The confusion crested last week when Perry Drake, senior manager of media relations for Loyola University Health System in Chicago, put together a news release touting a Loyola psychologist’s expertise on relationships and social media. Finding the 1-in-5 figure online, Mr. Drake led the news release with the headline: “Don’t let your marriage be among the 1 in 5 destroyed by Facebook.” By the time Mr. Drake became aware of the error and alerted the news release’s recipients, news articles had appeared around the world.”