An answer key for use in answering multiple-choice questions is configured to provide immediate feedback to an examinee as to whether correct response has been made for each question. The key comprises a substrate having a plurality of similar geometric shaped holes and at least one geometric shaped hole being different in characteristic to said plurality of similar geometric shaped holes. Under each multiple question a line coded is printed comprising a plurality of similar shaped drawings and at least one shaped drawing which are arranged in X row. The at least one shaped drawing is shaped differently from said plurality of similar shaped drawings, wherein one of the similar shaped drawings corresponds to said correct response. The correct response is identified by placing the answer key on the coded line.

 
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