Psychometrics
Field building the measurement of psychological attributes — ability, traits, attitudes — with quantified reliability.
Specifications & Metrics
- focus
- Construction and validation of tests and scales; reliability, validity, and fairness
- pioneer
- Alfred Binet (first practical intelligence test, 1905)
- method
- Item response theory, classical test theory, factor analysis, large-sample standardization
Core Principles & Analysis
- Alfred Binet and Théodore Simon produced the first practical intelligence scale in 1905 to identify pupils needing support.
- Charles Spearman and L. L. Thurstone made key contributions to factor analysis, a method used extensively in psychometrics.
- Modern item response theory models how individual questions function, not just total scores.
Sources