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 trans formed 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.
Subject
Psychology (miscellaneous),Social Sciences (miscellaneous)
Cited by
34 articles.
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