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Item Response Theory

Scope Note: 
The study of test and item scores based on assumptions concerning the mathematical relationship between abilities (or other hypothesized traits) and item responses (Note: "Item Response Theory" includes both the "Rasch Model" and the "Birnbaum Models" -- see those Identifiers)
Category: Research and Theory
Broader Terms
Test Theory
Narrower Terms
N/A
Use this term instead of
IRT LTT Measurement Theory
Item Characteristic Curve Theory
Latent Trait Theory (1980 1990)
Related Terms
Adaptive Testing
Equated Scores
Item Analysis
Mathematical Models
Psychometrics
Scores
Scoring
Test Construction
Test Interpretation
Test Items
Test Reliability
Test Validity
Added to ERIC: 4/2/1990