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Rasch model
Rasch model The Rasch model is a probabilistic item-response model for a latent trait that explains a person’s answer to an item from properties of both the person and the item.
The Rasch model is a probabilistic item-response model for a latent trait that explains a person’s answer to an item from properties of both the person and the item. It converts raw scores into logit measures and places people and items on the same interval scale, supporting measurement beyond simple ordinal scoring.