The Interaction Model
The interaction model, a generalization of the Rasch model (RM) for binary responses, retains many of the attractive features of the RM but does not assume local independence. Like the RM, the interaction model has simple sufficient statistics and a relatively straightforward interpretation. Computation of conditional maximum-likelihood estimates is a task of comparable difficulty to the corresponding computation for the Rasch model.
KeywordsInteraction Model Loglinear Model Local Independence Standard Normal Random Variable Ability Parameter
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