2026-09-21T06:41:36Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/82064 2023-07-11 col_2142_5131 col_2142_11614 com_2142_5130 com_2142_11613 com_2142_8903

Jeff Douglas Karelitz, Tzur Menachem 2015-09-25T20:38:59Z 2015-09-25T20:38:59Z 10000-01-01 2004 2004 Cognitive Diagnostic Assessment models define skills as binary. Examinees are described as either 'skill masters' or 'non-masters' and items as either requiring the skill or not. I propose an Ordered Category Attribute Coding (OCAC) framework, designed to enhance the diagnostic information provided by such models. This approach defines any skill, k, by the Mk steps taken to master it. Consequently, the entries of the categorical Q matrix represent skills' mastery levels required by test items and examinees' knowledge patterns represent their location on the learning path of each skill. The flexibility of the OCAC framework allows for a more informative, parsimonious and efficient representation of task requirements and examinee knowledge. The levels of required skills can be estimated simultaneously with the examinees knowledge states as well as noise parameters, with high recovery rate. The current work uses real and simulated data to test the framework's limitations and robustness to violation of underlying assumptions. Made available in DSpace on 2015-09-25T20:38:59Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3153343.pdf: 7186465 bytes, checksum: 54cc8c6763748033f03451d5ef4e464d (MD5) Previous issue date: 2004 Embargo set by: Seth Robbins for item 83345 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 136 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004. http://hdl.handle.net/2142/82064 (MiAaPQ)AAI3153343 eng Psychology, Psychometrics Ordered Category Attribute Coding Framework for Cognitive Assessments text Psychology Psychology University of Illinois at Urbana-Champaign Dissertation Ph.D.