Our study replicates a highly cited CDC study showing a negative association between school mask mandates and pediatric SARS-CoV-2 cases. We then extend the study using a larger sample of districts and a longer time interval, employing almost six times as much data as the original study. We examine the relationship between mask mandates and per-capita pediatric cases, using multiple regression to control for differences across school districts.
Findings: Replicating the CDC study shows similar results; however, incorporating a larger sample and longer period showed no significant relationship between mask mandates and case rates. These results persisted when using regression methods to control for differences across districts. Interpretation: School districts that choose to mandate masks are likely to be systematically different from those that do not in multiple, often unobserved, ways. We failed to establish a relationship between school masking and pediatric cases using the same methods but a larger, more nationally diverse population over a longer interval. Our study demonstrates that observational studies of interventions with small to moderate effect sizes are prone to bias caused by selection and omitted variables. Randomized studies can more reliably inform public health policy.
Mandates, closed schools and Dane County Madison Public Health.
The data clearly indicate that being able to read is not a requirement for graduation at (Madison) East, especially if you are black or Hispanic”
2017: West High Reading Interventionist Teacher’s Remarks to the School Board on Madison’s Disastrous Reading Results
My Question to Wisconsin Governor Tony Evers on Teacher Mulligans and our Disastrous Reading Results
Friday Afternoon Veto: Governor Evers Rejects AB446/SB454; an effort to address our long term, disastrous reading results
Booked, but can’t read (Madison): functional literacy, National citizenship and the new face of Dred Scott in the age of mass incarceration.
No When A Stands for Average: Students at the UW-Madison School of Education Receive Sky-High Grades. How Smart is That?