The term that might explain the fact that Jack only remembered the first and last few terms in his quiz is the Serial-position effect.
It is a phenomenon that was discovered by Hermann Ebbinghaus who noticed that he was able to remember the first part of a list and the last part best.
The middle part were often more difficult to remember. This is what Jack went through with his vocabulary quiz as he could only remember the first and last parts of the quiz.
Find out more on the serial position effect at https://brainly.com/question/10600564.