Psychometricians are professionals who specialize in the science of psychological measurement. Their primary focus is on the development, administration, and scoring of psychological tests, such as aptitude tests, personality tests, and achievement tests (AERA, APA, & NCME, 2014). Psychometricians analyze and interpret the results of these tests, and provide valuable information to individuals and organizations, such as educational institutions, businesses, and government agencies.

Psychometricians’ work typically involves: (a) designing, developing, and validating tests; (b) administering and scoring tests; (c) interpreting the results of tests; and (d) providing feedback and advice to clients. Psychometricians must also be familiar with the ethical codes of their profession and must adhere to the standards of practice set by the American Educational Research Association (AERA), the American Psychological Association (APA), and the National Council on Measurement in Education (NCME).

Psychometricians typically have a Master’s or Doctoral degree in psychology, educational measurement, or a related field. They must also have knowledge of psychological and educational principles, statistical methods, and psychometric theory and practice. Many psychometricians are certified by the American Psychological Association (APA) or the National Council on Measurement in Education (NCME).

Psychometricians play an important role in helping individuals and organizations better understand and measure psychological and educational concepts. They help to ensure that tests are valid, reliable, and fair, and that the results are accurately interpreted.


American Educational Research Association, American Psychological Association, & National Council on Measurement in Education. (2014). Standards for educational and psychological testing. Washington, DC: American Educational Research Association.

Scroll to Top