Interestingly enough, it was the atheists and agnostics that scored the highest in the survey with an average of 21 correct answers. Jews and Mormons followed with around 20 accurate responses, Protestants averaged 16 correct answers, and Catholics followed with a score of about 15. Mormons scored the highest on general questions about Christianity, with an average of about 8 correct answers out of 12.
How do you explain these results? Why do you think atheists and agnostics tested better than actual believers? Why do members of the LDS Church test better than other Christian denominations? Although I tend to agree with Dave Banack's conclusion that our Sunday School Gospel Doctrine manuals need a major overhaul, they have arguably helped our members become more knowledgable and served a valuable purpose.