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CHAPTER 3 Estimating Item Parameters - EdRes.org

CHAPTER 3 Estimating Item Parameters - EdRes.org

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Chapter 3: Estimating Item Parameters 53 FIGURE 3-6. Item characteristic curve fitted to the group 2 data The result of interest is that under these conditions, b(1) = b(2) and a(1) = a(2); i.e., the two groups yield the same values of the item parameters.

  Time, Chapter, Parameters, Item parameters

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