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A minimum chi-square method for developing a common metric in item response theory
Divgi, D. R. (1985)
 

Title 
A minimum chi-square method for developing a common metric in item response theory

Author(s)

Issue Date
1985

Type
Article

Abstract
The θ scale in item response theory has arbitrary unit and origin. When a group of items is calibrated twice, estimates from one calibration must be transformed to the metric of the other. A new method is presented for doing so. It is simpler than an earlier method based on test characteristic curves, and makes more complete use of available information.

Other Identifier(s)
other: doi:10.1177/014662168500900410

Previously Published Citation
Divgi, D. R. (1985). A minimum chi-square method for developing a common metric in item response theory. Applied Psychological Measurement, 9, 413-415. doi:10.1177/014662168500900410

Suggested Citation
Divgi, D. R.. (1985). A minimum chi-square method for developing a common metric in item response theory. Retrieved from the University of Minnesota Digital Conservancy, http://purl.umn.edu/107573.


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