IRT Test Equating in Complex Linkage Plans

Michela Battauz ()

Psychometrika, 2013, vol. 78, issue 3, 464-480

Abstract: Linkage plans can be rather complex, including many forms, several links, and the connection of forms through different paths. This article studies item response theory equating methods for complex linkage plans when the common-item nonequivalent group design is used. An efficient way to average equating coefficients that link the same two forms through different paths will be presented and the asymptotic standard errors of indirect and average equating coefficients are derived. The methodology is illustrated using simulations studies and a real data example. Copyright The Psychometric Society 2013

Keywords: asymptotic standard errors; chain equating; double equating; equating coefficients; item response theory; multiple equating; weighted bisector (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s11336-012-9316-y

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