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.