Understanding Item Response Theory in Measurement Models
Item Response Theory (IRT) is a statistical measurement model used to describe the relationship between responses on a given item and the underlying trait being measured. It allows for indirectly measuring unobservable variables using indicators and provides advantages such as independent ability es
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Understanding Item-Response Theory (IRT) in Educational Assessments
This lecture covers the design and use of test scores, focusing on the principles of Item-Response Theory (IRT) in large-scale international assessments. IRT aims to measure latent traits reliably by analyzing individual question responses rather than just total scores. The advantages of IRT over Cl
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