Psychometrics

Psychometrics is a specialized branch of psychology that focuses on the theory, methods, and techniques of psychological measurement. It involves creating mathematical models for psychological assessment based on certain axiomatic assumptions and encompasses the design and administration of tests, as well as the evaluation of operational procedures. The overarching goal of psychometrics is to enhance the quality of measurement and assessment in both psychological research and practical applications.

The origins of psychometrics can be traced back around 4000 years to ancient China, where sages began recognizing and attempting to measure individual differences in personality and abilities. This period marks the early stages of psychometric thought. The world’s first known psychological measurement occurred during the Western Zhou period with the implementation of the Six Arts in education, used by Zhou monarchs for talent selection in governance. Confucius, over 2000 years ago, utilized...