The COVID-19 pandemic caused widespread disruptions to the educational system in Nebraska and across the world. At the onset of the pandemic in March 2020, schools in Nebraska were forced to replace on-site instruction with virtual instruction. During the 2020-2021 academic year, many students learned online or under hybrid learning formats.…

Using a sample of schools testing annually in grades 9-11 with a vertically linked series of assessments, a latent growth curve model is used to model test scores with student intercepts and slopes nested within school. Missed assessments can occur because of student mobility, student dropout, absenteeism, and other reasons. Missing data…