The reliability of a linear composite of nonequivalent subtests

Rozeboom, William W.
1989
Thumbnail Image

View/Download File

v13n3p277.pdf (405.12 KB)

Persistent link to this item

https://hdl.handle.net/11299/107320
Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

The reliability of a linear composite of nonequivalent subtests

Authors

Published Date

1989

Publisher

Type

Article

Abstract

Traditional formulas for estimating the reliability of a composite test from its internal item statistics are inappropriate to judge the reliability of multiple regressions and other weighted composites of subtests that are appreciably nonequivalent. Formulas are provided here for the reliability of such a composite given the reliabilities of its component subtests, followed by a comparison of the composite’s reliability to that of its components. Compositing can easily incur a substantial loss of reliability, though gains are entirely possible as well. Index terms: combining nonequivalent subtests, composite reliability, item weighting, nonequivalent subtests, nonhomogeneous item composites.

Keywords

Description

Related to

Replaces

License

Collections

Applied Psychological Measurement, Volume 13, 1989

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Rozeboom, William W. (1989). The reliability of a linear composite of nonequivalent subtests. Applied Psychological Measurement, 13, 277-283. doi:10.1177/014662168901300307

Suggested citation

Rozeboom, William W.. (1989). The reliability of a linear composite of nonequivalent subtests. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/107320.

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.