Scantron is a company, based 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
North America, and many students associate the word "Scantron"
with computer-graded, multiple choice examinations. Scantron
test forms commonly, there are two sides to Scantron answer
sheets. They can contain 50 answer blanks, 100 answer blanks,
and so on. A smaller form, called a Quizzstrip™, provides answer
space for only about 20 questions. On the back of larger sheets
is a space in which answers to other kinds of questions can be
written. The 8.5×11-inch form may contain a larger area for
working math problems, write long-hand answers, etc. Answers "A"
and "B" are commonly