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Amirreza Mehrabi

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Preprint Aug 2026

When Can Text Embeddings Replace Item Calibration? A Geometric Diagnostic for Semantic Loadings in Multidimensional Adaptive Testing

A simple diagnostic metric based on the loading matrix condition number is proposed to evaluate whether an item bank is suitable for text-derived loadings prior to testing, and reflects the shared vocabulary common in personality items.

Amirreza Mehrabi · 0 citations