You give GraderJoe the correct answers by marking them on a key sheet.

The type of key sheet used must be the same type as the answer sheets that the students used. For example, if students used the 20 Questions, 6 Use answer sheet, the key must also be the same type. When you generate GraderJoe multiple-choice answer sheets, key sheets of the same type are appended to the student answer sheets.

The key sheet you use must have the same block as the one in which the students marked their answers. See the answer to How do the multi-use answer sheets work?

Finally, if the test has several versions, make as many keys as the number of versions of the test. For each key, make sure you mark the appropriate test version in the 'Test Version' section. See the answer to How does a teacher administer and grade a multi-version test?