The Information Matrix in Latent-Variable Models

Abstract

The information matrix for the parameters in a latent-variable model is bounded from above by the information that would obtain if the values of the latent variables could also be observed. The difference is the missing information. This paper discusses the structure of the information matrix, and characterizes the degree to which missing information can be recovered by exploiting collateral variables for respondents. The results are illustrated with data from the Armed Services Vocational Aptitude Battery.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1988
Accession Number
ADA196609

Entities

People

  • Kathleen M. Sheehan
  • Robert J. Mislevy

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  • Educational Testing Service

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  • Human Systems

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  • Department Of Defense
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