what are independent/dependent variables here?
It is June and you have just completed your final Introduction to Research Methods in Psychology test. You think to yourself: "Finally! I am done with this stuff forever." Unfortunately, you are unaware that your professor has a devious, somber plan in store for you. Ten years later, he contacts you up and explains that he wants to extend Bahrick s (1984) research on very long-term memory. Thus, he asks if you would be willing to take the final test for your research methods class again! After hearing his generous compensation offer, you decide to accept as do 14 other students in the class. The original 2020 scores and the new 2030 scores are given in Table 3 below
im confused on what would be the independent/dependent variables here. it doesn't seem very clear on what is being tested.