In this code, we simulate how five different Likert scale changes could impact on the corresponding IRT properties.
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Updated
Jun 26, 2022 - R
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graded-response-model
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An adaptive testing engine: item response theory, maximum-information item selection, live ability estimation, and differential item functioning.
statistics typescript assessment expectation-maximization numerical-methods maximum-likelihood item-response-theory computerized-adaptive-testing psychometrics adaptive-testing differential-item-functioning rasch-model graded-response-model exposure-control test-reliability mantel-haenszel item-calibration partial-credit-model polytomous-irt marginal-maximum-likelihood
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Updated
Sep 13, 2026 - TypeScript
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