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Introduction

Christine DeMars

in Item Response Theory

Published in print:
2010
Published Online:
March 2012
ISBN:
9780195377033
eISBN:
9780199847341
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195377033.003.0001
Subject:
Psychology, Cognitive Psychology

Item response theory (IRT) models show the relationship between the ability or trait (θ) measured by the instrument and an item response. Both the IRT and classical test theory (CTT) indices and how ... More


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