NOTE: Learning mode results were collected at two periods across sampled schools. The first period took place September through December 2021, and the second period ran from December 2021 through January 2022. The response rate for Puerto Rico was insufficient to report results for the masking and social distancing questions. The response rate in Vermont (66%) and Washington (66%) on the masking and social distancing questions was below the 70% threshold. No response bias analysis is conducte...
