Article

Scoring Two-Part Multiple-Choice Items: An IRT Model Comparison with Implications for Validity Arguments and Process Inference

2026-05-06

Abstract excerpt

<p>Two-part multiple-choice items elicit a content decision and a justifying reason, yet the choice of scoring rule that translates the paired responses into a latent-trait estimate is typically made on practical rather than psychometric grounds. We compare eight scoring models -- Part-1-only 2PL, conjunctive 2PL, partial credit, nominal response, mixed sequential, mixture IRT, attribute-group bifactor GPCM, and e...

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Literature Corpus work: b980e2f0-27ed-5fe0-b4dc-c933b8c33294
DOI: 10.31234/osf.io/5mqwk_v1

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