Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/243198
Type: Artigo de periódico
Title: Comparison Of Ability Estimation Methods Using Irt For Tests With Different Degrees Of Difficulty
Author: Borgatto
Adriano Ferreti; Azevedo
Caio; Pinheiro
Aluisio; Andrade
Dalton
Abstract: The aim of the present study is to determine the dependence of the estimation of individual abilities obtained by item response theory (IRT) in relation to the degree of test difficulty and to evaluate how the estimation error may be affected by the estimation method employed. It is shown that abilities in the scale region with little test information are more efficiently estimated using the maximum weighted likelihood estimation (WLE) method, particularly abilities belonging to the upper part of the scale. The study also demonstrates the importance of largest tests for ability estimation.
Subject: A-posteriori Estimation
Country: PHILADELPHIA
Editor: TAYLOR & FRANCIS INC
Rights: embargo
Identifier DOI: 10.1080/03610918.2013.781630
Address: http://www.tandfonline.com/doi/abs/10.1080/03610918.2013.781630
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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