Factors Which Influence Precision of School-Level IRT Ability Estimates.

Tate, Richard L.; King, F. J.

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Peer reviewed

ERIC Number: EJ482614

Record Type: Journal

Publication Date: 1994

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0022-0655

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Factors Which Influence Precision of School-Level IRT Ability Estimates.

Tate, Richard L.; King, F. J.

Journal of Educational Measurement, v31 n1 p1-15 Spr 1994

The precision of the group-based item-response theory (IRT) model applied to school ability estimation is described, assuming use of Bayesian estimation with precision represented by the standard deviation of the posterior distribution. Similarities with and differences between the school-based model and the individual-level IRT are explored. (SLD)

Descriptors: Ability, Bayesian Statistics, Estimation (Mathematics), Item Response Theory, Models, School Size, Statistical Bias, Statistical Distributions, Statistical Studies

Publication Type: Reports - Evaluative; Journal Articles

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

Author Affiliations: N/A