Two Sample independent tests

Just tell me we will use two Sample independent tests or the two-sample dependent test and why.

An experiment was carried out to compare recall ability when reading electronically compared to hard copy. Thirty students from a first-year university English class agreed to participate.

Each student was shown a randomly generated list of 40 five-letter words on a tablet and given 2 minutes to memorize them. They were then given 4 minutes to write down as many of the words as they could recall. An hour later, the students repeated the experiment but this time the list of 40 five-letter words was given to them on a piece of paper.