Book Definition: A property exhibited by a test in which each item is representative of the larger body of knowledge about the subject that the test covers.

In Your Own Words

  • When the questions in a test go with the subject that is being tested.
  • A test's questions are on the corresponding topic.
  • The test questions are relevant to the subject being tested.


  • AP US history test would not have any questions from a European history test.
  • An AP Lit test would not have any questions on Algebra.
  • A piano test WOULD have questions about reading notes, and time signatures.

Additional Resources