Using longitudinal data to estimate reliability
1983
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Using longitudinal data to estimate reliability
Authors
Published Date
1983
Publisher
Type
Article
Abstract
Werts, Breland, Grandy, and Rock (1980) have
analyzed the relationship between a direct and an indirect
measure of writing ability. Werts et al. assumed
that the same true score underlies both measures and
concluded that the test-retest reliability of the essay
tests is biased due to correlated errors. The present
analysis of their data shows that the direct and indirect
tests measure two different abilities which correlate
only .89 with each other and that it is not necessary to
include correlated measurement errors for the essay
tests. It is argued that the assumption that different
tests measure the same ability should always be tested.
Werts et al. (1980) did not test this assumption, and
their conclusions, as a result, are incorrect.
Keywords
Description
Related to
Replaces
License
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Blok, Henk & Saris, Wim E. (1983). Using longitudinal data to estimate reliability. Applied Psychological Measurement, 7, 295-301. doi:10.1177/014662168300700305
Suggested citation
Blok, Henk; Saris, Wim E.. (1983). Using longitudinal data to estimate reliability. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/101710.
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.