2024 Yes Daylight and School Performance in European Schoolchildren https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7795157/ Baloch, R.M. Europe Observational Epidemiological Students Elementary (K-5) Lighting Test performance Illuminance Natural light Indoor air quality School Performance In 2,670 European children, daylighting factors—window shading, orientation, glazing, and window-to-floor ratio—positively correlated with math and logic test scores, highlighting the importance of classroom daylight for academic performance. 2020