It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in the following article, where the researchers used the t-test to analyze the relationship between clinical simulation methodologies and student learning. Scherer, Y., Foltz-Ramos, K., Fabry, D., & Chao, Y. (2016). Evaluating simulation methodologies to determine best strategies to maximize student learning. Journal of Professional Nursing, 32(5), 349–357.

One of the student groups had their knowledge and performance measures assessed before and after the simulation, then again after repeating the simulation experience a second time. Multiple t-tests are utilized to examine the data from two different points in time. Would an independent t-test or dependent t-test be appropriate to compare the knowledge score on the pretest versus the test after the first simulation?