Download E-books Testlet Response Theory and Its Applications PDF

By Howard Wainer

The dimension types hired to attain checks were evolving over the last century from those who specialize in the whole try (true rating thought) to types that concentrate on person attempt goods (item reaction idea) to versions that use small teams of things (testlets) because the fungible unit from which exams are built and scored (testlet reaction idea, or TRT). during this publication, the inventors of TRT hint the background of this evolution and clarify the nature of contemporary TRT. Written for researchers and pros in records, psychometrics, and academic psychology, the 1st half deals an available advent to TRT and its purposes. the second one half offers a accomplished, self-contained dialogue of the version couched inside an absolutely Bayesian framework. Its parameters are predicted utilizing Markov chain Monte Carlo techniques, and the ensuing posterior distributions of the parameter estimates yield insights into rating balance that have been formerly unsuspected.

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