With a test, an OMR device first scans the answer key sheet to record correct answers based on patterns of light, then scans the remaining documents and matches their patterns of light against the answer key sheet.

Question

Quizplus · Accepted Answer

An OMR (Optical Mark Recognition) device works by scanning documents to detect marked areas, comparing them to a pre-scanned answer key to determine correct answers.

With a Test, an OMR Device First Scans the Answer