1. Content Validity and Reliability of Single Items or Questionnaires
2. Three Coefficients for Analyzing the Reliability and Validity of Ratings
3. American Educational Research Association, American Psychological Association, & National Council on Measurement in Education. (1999). Standards for educational and psychological testing. Washington, DC: American Psychological Association.
4. Brown, F. G. (1986). Principles of educational and psychological testing (3rd ed.). New York: Holt, Rinehart and Winston.
5. Teaching for the Test: Validity, Fairness, and Moral Action