More than one-in-ten Americans (11%) say they have experienced or witnessed an exorcism, when the devil or evil spirits are driven out of a person. Over a third (34%) of pentecostals say they have had experience with exorcisms, compared with 7% of the general Christian population, according to a survey by the Pew Forum on Religion and Public Life. Read More

Russell Heimlich  is a former web developer at Pew Research Center.