[Note to moderator: you might want to look over this answerline before reading the question.]This entity was studied in relation to children by Iona and Peter Opie, while Eric Maple studied it in relation to witches. One category of this entity was first studied in depth by Jan Brunvand. An article that famously claimed "any group of people can have" this entity was titled for the "Devolutionary Premise" in the theory of 
[Note to moderator: you might want to look over this answerline before reading the question.]This entity was studied in relation to children by Iona and Peter Opie, while Eric Maple studied it in relation to witches. One category of this entity was first studied in depth by Jan Brunvand. An article that famously claimed "any group of people can have" this entity was titled for the "Devolutionary Premise" in the theory of it. The founder of the study of this thing claimed that Americans prioritize the sense of sight in the article "Seeing is Believing." The academic study of this entity was introduced by Alan (*) Dundes. It is divided up by "motif" in the Aarne-Thompson classification, which was criticized by Vladimir Propp. Much of this stuff was collected and published by Alexander Afanasyev and the Brothers Grimm. For 10 points, name this collection of oral traditions, proverbs, and tall tales of a culture.
[Note to moderator: you might want to look over this answerline before reading the question.]This entity was studied in relation to children by Iona and Peter Opie, while Eric Maple studied it in relation to witches.
folklore [prompt on "folk culture"; antiprompt on specific kinds of folklore, e.g. "fairy tales" or "urban legends"]