The University of Vermont was already conducting an ongoing study on emotional health and wellness. To investigate COVID’s impact on student’s mental health, a smaller sample of students were selected from the larger study. Eligible participants were full time undergraduate first year students between the ages of 18 and 25. For app compatibility, these participants also needed to have an iPhone 5 or newer. 675 students took a full behavior and emotion assessment at the start of the 2020 spring semester. 576 of these students also took the assessment at the end of the semester in which COVID’s onset had already occurred. 600 students also took a survey in which they answered at least one item, and 485 students regularly answered nightly surveys relating to mood and wellness behaviors throughout the semester (both before and after COVID’s onset). 67% on these students were also members of the university’s Wellness Environment program which supports healthy behaviors and student’s transition to college. In this program, students are not allowed to have alcohol or drugs in their dorms.