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ERIC Number: EJ997476
Record Type: Journal
Publication Date: 2013
Pages: 9
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0731-1745
Validating Student Score Inferences with Person-Fit Statistic and Verbal Reports: A Person-Fit Study for Cognitive Diagnostic Assessment
Cui, Ying; Roberts, Mary Roduta
Educational Measurement: Issues and Practice, v32 n1 p34-42 Spr 2013
The goal of this study was to investigate the usefulness of person-fit analysis in validating student score inferences in a cognitive diagnostic assessment. In this study, a two-stage procedure was used to evaluate person fit for a diagnostic test in the domain of statistical hypothesis testing. In the first stage, the person-fit statistic, the hierarchy consistency index (HCI; Cui, 2007; Cui & Leighton, 2009), was used to identify the misfitting student item-score vectors. In the second stage, students' verbal reports were collected to provide additional information about students' response processes so as to reveal the actual causes of misfits. This two-stage procedure helped to identify the misfits of item-score vectors to the cognitive model used in the design and analysis of the diagnostic test, and to discover the reasons of misfits so that students' problem-solving strategies were better understood and their performances were interpreted in a more meaningful way. (Contains 3 tables and 1 figure.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Canada