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50 Years of ERIC
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Peer reviewed Peer reviewed
ERIC Number: EJ161343
Record Type: CIJE
Publication Date: 1977
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Conditional Versus Unconditional Procedures for Sample-Free Item Analysis
Wright, Benjamin D.; Douglas, Graham A.
Educational and Psychological Measurement, 37, 1, 47-60, Spr 77
Procedures for the Rasch model, sample free item calibration are reviewed and compared for accuracy. The theoretically ideal procedure is shown to have practical limitations. Two alternatives to the ideal are presented and discussed. A correction for bias in the most widely used alternative is presented. (Author/JKS)
Descriptors: Item Analysis, Latent Trait Theory, Measurement, Psychometrics, Statistical Bias
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Rasch Model