Yates ME, Stellato RK, Johannes CB, Avis NE. The importance of AIDS-related knowledge for mid-life and older women. AIDS Educ Prev. 1999 Jun;11(3):224-31.
Williams VSL, Wakeford ME. The predictive validity of the National Teacher Examinations for performance in teacher education programs. Educ Psychol Meas. 1993;53(2):533-9. doi: 10.1177/0013164493053002023