(Thanks to Youth Specialties for this info:)

From the announcement: The National Study of Youth and Religion (NSYR) announces the release of a new report on adolescents in the United States based on the second wave of NSYR survey data.  In “Religion and Spirituality on the Path Through Adolescence,” the authors examined religious and spiritual changes in the lives of adolescents in the United States across a three-year span. The comparison of NSYR survey responses from the same adolescents in 2002 and 2005 reveals relatively small but consistent decreases in conventional religious beliefs and practices. Although the majority of adolescents in this study remained stable in their religious beliefs, practices, and spirituality, a significant minority did experience slight shifts away from standard religious beliefs and decreases in religious practice. Overall, the dynamics in religiosity and spirituality among this nationally representative sample of adolescents reflect subtle changes–rather than large or dramatic shifts.

From the report: The most significant changes in religious affiliation were found in the decline of adolescents reporting a Protestant affiliation and the increase in adolescents who did not claim any religious affiliation, resulting in an overall change of approximately 8% in each category. We found that about 25% of adolescents who identified themselves as Protestant in Wave 1 reported a different affiliation in Wave 2.

What the stats show is there there was an small uptick (probably not significant statistically) in kids reporting that they are Catholic! Read the report here.