The Rasch model is a probabilistic model used in psychometrics and educational assessment for measuring latent traits, such as abilities or attitudes. It was developed by Georg Rasch in the 1960s and is a specific type of Item Response Theory (IRT). The Rasch model estimates an individual's latent trait (e.g., ability, attitude) and the properties of the items (e.g., difficulty) based on responses to assessments.
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