via The Guardian: Where have all the believers gone?
"the gap between age groups arises not because individuals become more religiously committed as they get older, but because children are less religious than their parents. The results suggest that institutional religion in Britain now has a half-life of one generation, to borrow the terminology of radioactive decay. Two non-religious parents successfully transmit their lack of religion. Two religious parents have roughly a 50/50 chance of passing on the faith. One religious parent does only half as well as two together."
Copyright Ed Baker