Scantron is a company, base in Irvine, California, USA, that manufactures and sells machine-readable papers on which students mark answers to academic test questions, the machines to analyze those answers, survey and test scoring systems, the taking of school attendance (with a mark denoting an absent student) and image-based data collection software and scanners. The use of the name Scantron pervades primary and secondary education in The United States, and many students associate the word "Scantron" with computer-graded, multiple choice examinations.