The effects on parameter estimation of correlated dimensions and a distribution-restricted trait in a multidimensional item response model

Batley, Batley
Boss, Marvin W.
1993
Thumbnail Image

View/Download File

v17n2p131.pdf (836.44 KB)

Persistent link to this item

https://hdl.handle.net/11299/116317
Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

The effects on parameter estimation of correlated dimensions and a distribution-restricted trait in a multidimensional item response model

Authors

Published Date

1993

Publisher

Type

Article

Abstract

This study was designed to assess the effects on parameter estimation of correlated dimensions and a distribution-restricted trait on one dimension using a two-dimensional item response theory model. Multidimensional analysis of simulated two-dimensional item response data fitting a multidimensional two-parameter logistic item response theory model (McKinley & Reckase, 1983a; Reckase & McKinley, 1991) was done using the program MIRTE (Carlson, 1987). Six datasets (2 trait distributions x 3 levels of correlation between dimensions) of 2,000 trait vectors over 104 items were generated. Each dataset was analyzed and replicated 100 times. Trait and item parameters generally were recovered adequately in the datasets in which both traits were normally distributed over the full range. In the datasets with a restricted range of trait level on the second dimension, recovery of the trait and item parameters was affected adversely. The results indicated that MIRTE recovers the structure of a multidimensional correlated space better than reported in earlier studies, especially when items are multidimensional. Index terms: correlated traits, multidimensional item parameter estimates, multidimensional item response theory, multidimensional trait estimates, restricted traits.

Keywords

Description

Related to

Replaces

License

Collections

Applied Psychological Measurement, Volume 17, 1993

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Batley, Rose-Marie & Boss, Marvin W. (1993). The effects on parameter estimation of correlated dimensions and a distribution-restricted trait in a multidimensional item response model. Applied Psychological Measurement, 17, 131-141. doi:10.1177/014662169301700203

Suggested citation

Batley, Batley; Boss, Marvin W.. (1993). The effects on parameter estimation of correlated dimensions and a distribution-restricted trait in a multidimensional item response model. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/116317.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.