D-BIRD decomposes student ability into a cohort trend and individual deviations, both modeled as random walks, and demonstrates improved recovery in simulations and on K-12 reading data.
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Dynamic Bayesian Item Response Model with Decomposition (D-BIRD): Modeling Cohort and Individual Learning Over Time
D-BIRD decomposes student ability into a cohort trend and individual deviations, both modeled as random walks, and demonstrates improved recovery in simulations and on K-12 reading data.