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Download full textHambleton, Ronald K.; Jones, Russell W. – 1993
Errors in item parameter estimates have a negative impact on the accuracy of item and test information functions. The estimation errors may be random, but because items with higher levels of discriminating power are more likely to be selected for a test, and these items are most apt to contain positive errors, the result is that item information…
Descriptors: Computer Simulation, Error of Measurement, Estimation (Mathematics), Item Banks
