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- Andersson, Björn, 1984-
(författare)
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An Evaluation of Hypothesis Testing Methods for Equating Differences in Kernel Equating
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- In observed-score equating, hypothesis tests of equating differences are helpful in deciding which equating function is suitable. Here, a hypothesis testing procedure for item response theory (IRT) observed-score kernel equating using a Wald test is introduced. Simulations evaluating the Wald test when using IRT and log-linear models are conducted. The test with either IRT or log-linear models is shown to have high power and greatly outperform the Hommel multiple hypothesis testing method. The Wald test is applied to two datasets in both an equivalent groups design and a non-equivalent groups design, showing that the Wald test can provide different conclusions to other hypothesis testing methods in practice.
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- Andersson, Björn, et al.
(författare)
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Inkomst- och förmögenhetsfördelningen för dagens och morgondagens äldre
- 2002
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Ingår i: SOU 2002:29 Bilagedel B. - : Fritzes Offentliga Publikationer. - 913821671X
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- This report summarizes the changes in the distributions of income and wealth for the Swedish population aged 50+ in the 1990s and discusses potential future developments.
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