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Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2012.tde-28062012-093302
Document
Author
Full name
Gilberto Pereira Sassi
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2012
Supervisor
Committee
Noveli, Cibele Maria Russo (President)
Andrade, Dalton Francisco de
Ehlers, Ricardo Sandes
Title in Portuguese
Teoria e a prática de um teste adaptativo informatizado
Keywords in Portuguese
Algoritmo de seleção de item
Modelo logístico unidimensional
Teoria de resposta ao item
Teste adaptativo informatizado
Abstract in Portuguese
O objetivo deste trabalho é apresentar os conceitos relacionados a Teste Adaptativo Informatizado, ou abreviadamente TAI, para o modelo logístico unidimensional da Teoria de Resposta ao Item. Utilizamos a abordagem bayesiana para a estimação do parâmetro de interesse, chamado de traço latente ou habilidade. Apresentamos os principais algoritmos de seleção de itens em TAI e realizamos estudos de simulação para comparar o desempenho deles. Para comparação, usamos aproximações numéricas para o Erro Quadrático Médio e para o Vício e também calculamos o tempo médio para o TAI selecionar um item. Além disso, apresentamos como instalar e usar a implementação de TAI desenvolvida neste projeto chamada de TAI2U, que foi desenvolvido no VBA-Excel usando uma interface com o R
Title in English
Theory and practice of computerized adaptive testing
Keywords in English
Computerized adaptive testing
Item response theory
Item selection algorithms
Unidimensional three-parameter logistic model
Abstract in English
The main of this work is to introduce the subjects related to Computerized Adaptive Testing, or breafly CAT, for the unidimensional three-parameter logistic model of Item Response Theory. We use bayesian approach to estimate the parameter of interest. We present several item selection algorithms and we perform simulations comparing them. The comparisons are made in terms of the mean square error, bias of the trait estimates, the average time for item selection and the average length of test. Furthermore, we show how to install e use the CAT implementation of this work called built in MIcrosoft Excel - VBA using interface with the statistical package R
 
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gilbertorevisada.pdf (10.22 Mbytes)
Publishing Date
2012-06-28
 
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