Final answer:
The finding that best supports the false fame effect is when a non-famous but familiar name is misattributed to being famous because the correct origin of the familiarity is not recalled.
Step-by-step explanation:
The false fame effect is a psychological phenomenon where non-famous names that are familiar to a participant are wrongly believed to be famous. This effect occurs when participants can't remember the true source of the familiarity and, instead, attribute it to fame. The finding that best supports this effect would be: A non-famous but familiar name in a list of famous names is misattributed to being a famous name if the subject doesn't recall the correct origin of the familiarity. This is because the false fame effect arises from a failure in source monitoring, where familiarity without recollection of context can lead to the belief that the name must be famous since it is known to them.