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Estudos em Avaliação Educacional
versão impressa ISSN 0103-6831
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FERRAO, Maria Eugênia; BELTAO, Kaizô Iwakami e LEITE, Iuri Costa. O ambiente escolar no desempenho acadêmico do aluno: criação de uma escala a partir do SAEB-99. Est. Aval. Educ. [online]. 2002, n.26, pp.75-92. ISSN 0103-6831.
This article is part of an ongoing research Project on factors explaining school -effect on students’ proficiency. The research uses Elementary Education Evaluation System (SAEB) data complemented by School Census information. Both surveys are conducted by INEP, an institute linked to the Ministry of Education. One of the factors under scrutiny is school environment and infrastructure, data collected in one of the SAEB questionnaires. A scale was drawn up using the fuzzy sets GOM - Grade of Membership - technique. The goal of this article is to present the technique and then apply it to the SAEB data on schools. The scale summarizes characteristics of the school, such as noise level in classrooms, tidiness, availability of restrooms, libraries and labs, as well as school safety and other factors. This technique allows for a reduction in the dimensionality of the questionnaire for its subsequent use as a covariate in regression models, and specifically in our research project, in a multilevel regression.
Palavras-chave : Fuzzy Sets; Reduction of Dimensionality; Scales.