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On the Applications of the Method of Absolute Scaling

Published online by Cambridge University Press:  01 January 2025

Chung-Teh Fan
Chung-Teh Fan*
Affiliation:
Educational Testing Service
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Abstract

Empirical and fictitious examples are described for investigating the applications of the absolute scaling method for item scaling and score scaling. A discrepancy between the correct values and the values estimated through the absolute scaling method is demonstrated. It is concluded that when the groups are different the assumption of an identity between test score conversion and item difficulty conversion is not met.

Type
Original Paper
Information
Psychometrika , Volume 22 , Issue 2 , June 1957 , pp. 175 - 183
Copyright
Copyright © 1957 Psychometric Society

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Footnotes

*

Acknowledgment is due to Dr. Gulliksen, Dr. Lord, Dr. Swineford, and Dr. Tucker for their criticism and advice.

References

Gulliksen, H. Theory of mental tests, New York: Wiley, 1950CrossRefGoogle Scholar
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