April 15, 2013  – The rise of the so-called “Nones”—the increasing percentage of adults who claim no religious affiliation—has been a much-discussed trend in American religion. Is the nation moving away from Christianity and other forms of conventional faith? To provide insight on this topic, Barna Group analyzed 42,855 interviews conducted in recent years, looking at 15 different measures of non-religiosity. In other words, the research explores the emerging post-Christian landscape of the nation.

Metrics of Post-Christian Culture

Currently, more than seven out of 10 adults describe themselves as “Christian” and more than six out of 10 Americans say they are “deeply spiritual.” Yet, just how deep do these labels go?

To shed light on this, the Barna team created an aggregate metric of post-Christian culture based upon 15 different measures of identity, belief and behavior. To qualify as post-Christian, individuals met 60% or more of the factors (nine or more out of 15 criteria).

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