Value. In T.V. Smith and W.K. Wright (Eds.), Essays in Philosophy by Seventeen Doctors of Philosophy of the University of Chicago. Chicago: Open Court. Thurstone, L.L. (1959). The Measurement of Values. Chicago: The University of Chicago Press. Further reading External links APA Standards for Educational and Psychological Testing International Personality Item Pool Joint Committee on Standards for Educational Evaluation The Psychometrics Centre, University of Cambridge Psychometric Society and Psychometrika homepage London Psychometric Laboratory Psychometrics Applied psychology Educational research Psychological testing Metrics Educational assessment and evaluation