Resumo

BRAGION, Maria de Lourdes Lima; BUENO FILHO, Júlio Sílvio de Sousa  e  CORREA, Fábio Mathias. Analysis of entrance examination 2009-I of UFLA using the IRT. Est. Aval. Educ. [online]. 2011, vol.22, n.49, pp.329-351. ISSN 0103-6831.

This study aimed to analyze the multiple-choice questions of the 2009-I entrance examination ("vestibular") of the Federal University of Lavras (UFLA) by using IRT and Bayesian inference in order to identify which properties of the items qualify as better or worse, in order to inform new exams. It was found that the most difficult items tend to be more discriminative and more informative to select the most skilled candidates. Tests of English, Biology, Physics, Mathematics and Chemistry were the most difficult and had the highest discrimination power. Overall, this "vestibular" did not show that guessing would ensure a high probability of success. Some items estimates were analyzed in detail to unveil planning properties which could be used to enhance the quality of this kind of exam.

Palavras-chave : Entrance Exam; Item Response Theory; Multiple Choice Test; Qualitative Analysis.

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