Researchers at Harvard University secretly took photographs of roughly 2,000 students to study classroom attendance, prompting privacy complaints from faculty members, The Boston Globe reports.
Researchers in Harvard’s Initiative for Learning and Teaching conducted the study, which was approved by the university’s institutional review board and involved installing cameras in 10 classrooms in the spring of 2013. The cameras took one image every minute, and a computer program scanned the photos to determine which seats were empty and which were filled.
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