Scenario: A guidance counselor wanted to know if anxiety differs based on time in the school year (first day of class in relation to the last day of class), and if this differs based on year in school (as a freshman, sophomore, junior, or senior). She collected data in a single year - so, freshmen, sophomores, juniors, and seniors all completed the test in the academic year 2023/2024. Each participant completed the anxiety assessment twice – on the first and last day of the school year. Anxiety was measured using a standardized scale ranging from 0 – 50, with higher scores indicating greater anxiety. Question: What is the dependent variable in this scenario?