The religious beliefs and practices of Americans do not fit neatly into conventional categories; Large numbers of Americans engage in multiple religious practices, mixing elements of diverse traditions. Many say they attend worship services of more than one faith or denomination. Many also blend Christianity with Eastern or New Age beliefs such as reincarnation, astrology and the presence of spiritual energy in physical objects.

And sizeable minorities of all major U.S. religious groups say they have experienced supernatural phenomena, such as being in touch with the dead or with ghosts.

One-third of Americans (35%) say they regularly (9%) or occasionally (26%) attend religious services at more than one place, and most of these (24% of the public overall) indicate that they sometimes attend religious services of a faith different from their own. Aside from when they are traveling and special events like weddings and funerals, three-in-ten Protestants attend services outside their own denomination, and one-fifth of Catholics say they sometimes attend non-Catholic services.

Among those who attend religious services at least once a week, nearly four-in-ten (39%) say they attend at multiple places and nearly three-in-ten (28%) go to services outside their own faith, according to the Pew Forum survey, which was conducted Aug. 11-27 among 4,013 adults reached on both landlines and cell phones. Attending services at more than one place and across multiple religious traditions is even more common among those who go to religious services on a monthly or yearly basis, with nearly six-in-ten (59%) saying they attend at multiple places and four-in-ten attending services from outside their own faith at least sometimes.

Religiously mixed marriages are common in the United States, and the survey finds that the link between being in a religiously mixed union and attendance at multiple types of services is a complex one. Overall, people in religiously mixed marriages attend worship services less often than people married to someone of the same faith. But among those who attend religious services at least yearly, those in religiously mixed marriages attend multiple types of services at a higher rate than people married to someone of the same religion.

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