捕捉大学经历：疫情期间四年移动传感研究揭示大学生的心理健康、韧性与行为

We tracked two cohorts of first-year students at Dartmouth College for four years each, both on and off campus, from their first days of college to graduation, in what is, to our knowledge, the longest continuous mobile sensing study of the same participants to date. Using passive sensor data, weekly self-reports and interviews, we capture student behavior and mental health before, during and after the COVID-19 pandemic. Our findings reveal the pandemic's lasting imprint: depression, anxiety and stress rose during the pandemic and remained elevated after students returned to campus, while some