I need help with a hypothesis: Me and a friend were studying lists of spelliing and vocabulary lists. It seemed like everyone could easily remember the first word on the list and the fifteenth word on the list. It seemed very hard to remember the words in the middle.

2 answers

try writing them over a couple of times it seems to get into your mind that way
Your hypothesis might be that the first and fifteenth words on a list of xxxx number of words were easier to remember than the words in between those two.