Identifiability conditions in cognitive diagnosis: Implications for Q-matrix estimation algorithms.
Kim H; Köhn HF; Chiu CY · 2025 · The British journal of mathematical and statistical psychology
WASTE classifies this as Null Dataset · AI classification, approximate
A negative-result dataset — reusable evidence that an expected effect wasn't there.
Abstract (excerpt)
The Q-matrix of a cognitively diagnostic assessment (CDA), documenting the item-attribute associations, is a key component of any CDA. However, the true Q-matrix underlying a CDA is never known and must be estimated-typically by content…
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Metadata source: Europe PMC · DOI 10.1111/bmsp.70020