Browsing CEMO Centre for Educational Measurement by Author "Liu, Chen-Wei"
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Liu, Chen-Wei; Andersson, Björn; Skrondal, Anders (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)In diagnostic classification models (DCMs), the Q matrix encodes in which attributes are required for each item. The Q matrix is usually predetermined by the researcher but may in practice be misspecified which yields ...