Today, my young niece was taking one of my quizzes (dogs1- " Dog Breeds in the Sporting Group" while I watched. To my surprise, I saw that one of the answers she had that was definitely incorrect (after all, I wrote the quiz!) was recorded as correct. Curious, I tried the quiz myself, making deliberate errors, including the same error that she made. The error (stating that the Irish Setter was the largest setter, instead of the correct answer of Gordon Setter) was again marked as correct, as was an incorrect answer to another question (stating that the Field Spaniel, instead of the American Cocker Spaniel, was the smallest sporting dog). What is causing this error?