Accuracy of measurement in the simplified computerized adaptive test
2014 Volume 10 Issue 1 Pages 115-123
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2014 Volume 10 Issue 1 Pages 115-123
We investigated characteristics and the accuracy of test scores that are assessed by the simplified computerized adaptive test (SCAT; Kumagai et al., 2012). For this purpose, we conducted a computer simulation study using the Rasch model. The study identified a center bias in outlying SCAT scores and as a result, the standard error of outlying SCAT was smaller. Moreover, the standard error of SCAT was smaller than that of fixed items tests.
