Consciência fonológica: dimensionalidade e precisão de classificação do risco/não risco de dificuldade de leitura e de escrita

Abstract

The aims of this study were: 1) to present a literature review of studies about the precision of phonological awareness measures to classify individuals as being or not at risk of presenting difficulties in reading or writing; 2) to evaluate the dimensionality of phonological awareness in Brazilian Portuguese speakers; and 3) to verify the classification accuracy of the risk/no risk of difficulty in reading and writing from different measures of phonological awareness. In general, among the reviewed studies, phonological awareness measures varied from poor to reasonable in reading/writing risk classification accuracy. Two hundred and thirteen Brazilian Portuguese speaking children took part on the present study. They were evaluated through different phonological awareness tasks in the last year of early childhood education. Nine months later, they were evaluated through a reading measure and a writing measure. Factorial Analysis results showed that the different phonological awareness measures index a single construct. Concerning the ROC curve analysis, two composite measures of phonological awareness proved reasonable to discriminate children in the groups with and without difficulty in reading/writing, presenting AUCs around 0,75.