A New Latent Trait Modeling Approach with Contributions to Assessing Latent Unidimensionality and Ability Test Bias
Abstract
The objectives and progress are summarized with references to reports, unpublished works, and published papers detailing this work. Important accomplishments include: (a) correction of Stout's statistical test of unidimensionality for preasymptotic performance bias, (b) a large scale simulation study suggesting that the statistical test should perform well in applications, (c) development of a new IRT modeling approach capable of assessing the number of dominant latent dimensions and, (d) a rigorous definition of ability test bias and a statistical test of ability test bias. Keywords: Test of unidimensionality, Local independence, Essential unidimensionality, Test bias, Psychological testing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1988
- Accession Number
- ADA198830
Entities
People
- William Stout
Organizations
- University of Illinois Urbana–Champaign