A study of high-school students in a high-poverty district found that about 40% of students said high noise levels affected their performance on a standardized math test. Researchers found that urban schools were noisier than suburban or rural schools, and the decibel levels at some schools were almost double the recommended level for classrooms.
Sparks, S. D. (2018, November 05). Sounding an Alarm: Background Noise Can Hurt Student Achievement. Retrieved February 13, 2019
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