Fundamental Difficulty Error
The Fundamental Difficulty Error, also known as the Freshman Fallacy, is a very easy error to make when editing or discussing a set. Simply put, it states, "If I know the answer to a particular question, then the question is too easy. If I don't know it, it is too hard." Much like the fundamental attribution error that it takes its name from, it is to be avoided, as it is often wrong.
A corresponding Fundamental Difficulty Error for clues states, "If I know the answer to a tossup off a particular lead-in or middle clue, then the clue is too early. If I do not know the answer off a later clue, that clue should be moved earlier." This Fundamental Difficulty Error is largely responsible for the dearth of actual middle clues in many tossups.
An unnamed corollary to the Fundamental Difficulty Error states, "If a question was answered in my room, it must not have been too difficult for the field as a whole."