Exploiting Collateral Information in the Estimation of Item Parameters IRT

Author(s):

Mislevy, Robert J.

Publication Year:

1988

Report Number:

RR-88-53-ONR

Source:

ETS Research Report

Document Type:

Report

Page Count:

37

Subject/Key Words:

Office of Naval Research, Bayesian Statistics, Collateral Information, Item Response Theory (IRT), Missing Data

Abstract

When using item response theory (IRT) models in educational and psychological measurement, it is standard practice to estimate the operating characteristics of test items from examinees' item responses alone. This is the final report of a project that employed Bayesian and empirical Bayesian methods to exploit additional information that is often available about test items (e.g., format, content, or cognitive processing requirements) or about examinees (e.g., educational background or demographic status). Practical and theoretical results obtained in a series of research reports are summarized. (37pp.)

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• http://dx.doi.org/10.1002/j.2330-8516.1988.tb00309.x