Trabalho de Conclusão de Curso de Especialização
Aplicação de técnicas multivariadas para análise dos escores de classificação dos candidatos ao concurso vestibular 2007 da UFSM
Fecha
2007Autor
Calil, Paulo Roberto Machado
Institución
Resumen
The present work arises from the necessity of a statistic key which helps the COPERVES in the
analysis of the classification methodology of the candidates to the Vestibular. The Discriminant
Analysis of Fisher is a well knowed technique to data classification, which in this work will employ
the individual scores of the candidates for matter with the aim to value the discrimination rate between
candidates through of multivarieds techniques. The capacity of discrimination between the candidates
can be understood like an index, which is the value of the discriminant function calculated for each
candidate, based on their objective tests and composition marks. According to these marks, were
obtained two discriminant functions and three classification functions for three groups (no selecteds,
selecteds and successfuls), and a discriminant function and two classification functions for two groups
(selecteds and successfuls). The value of the classification function will determine the position of the
candidate in one of the three possible situations. In this way, the Discriminant Analysis shows an
excellent capacity to discriminate when the groups are samples of medium and large dimensions with
reference to the number the respected parameters, and low capacity to classify when the groups are
small samples because show a low accuracy in the respected parameters of the discriminant functions,
going down the final classification accuracy.