Italy's Center for Studies on New Religions reported in November that half of the priests surveyed reported a "significant rise in church attendance" since the election of Pope Francis. The "Francis effect" was lauded worldwide as a real change in religious attendance trends.
However, a recent survey by Pew Research Center refutes those claims, at least in the United States. Despite the Pope's popularity, self-reported levels of Mass attendance have remained virtually unchanged since 2007.
Furthermore, the percentage of U.S. adults who identify themselves as Catholics has remained extremely stable.