foundations: measurement theory and statistics
type: Concept
narrower: item response theory

theory and methodology
type: Concept
narrower: item response theory

item response theory
type: Concept
definition: Item response theory (IRT) is an approach used for survey development, evaluation, and scoring. IRT models describe the relationship between a person's response to a survey question and his or her standing on a latent (i.e. [Source: Encyclopedia of Survey Research Methods; Item Response Theory]
broader: theory and methodology
broader: test theory
broader: foundations: measurement theory and statistics

test theory
type: Concept
narrower: item response theory

methods
type: Collection
type: ConceptGroup
member: item response theory