In addition, The Barna Group has traditionally used nine doctrinal questions to categorize people as evangelicals, which distinguishes them from those who only fit the category of "born again" Christians. Using this criteria, just 8% of the adult population in 2006 were considered evangelical.<ref>[http://www.barna.org/barna-update/article/13-culture/111-survey-explores-who-qualifies-as-an-evangelical Survey Explores Who Qualifies As an Evangelical, 2007, The Barna Group]</ref> | In addition, The Barna Group has traditionally used nine doctrinal questions to categorize people as evangelicals, which distinguishes them from those who only fit the category of "born again" Christians. Using this criteria, just 8% of the adult population in 2006 were considered evangelical.<ref>[http://www.barna.org/barna-update/article/13-culture/111-survey-explores-who-qualifies-as-an-evangelical Survey Explores Who Qualifies As an Evangelical, 2007, The Barna Group]</ref> |