Teste Informatizado e Dinâmico de Escrita: Evidências de Validade Baseadas na TRI

Abstract

Este estudo objetiva buscar evidências de precisão e de validade com base na estrutura interna do Teste Informatizado e Dinâmico de Escrita, utilizando a Teoria de Resposta ao Item. Foram incluídos 304 participantes de Porto Alegre, entre 10 e 17 anos. Utilizou-se o TIDE, cujo objetivo é avaliar o potencial de aprendizagem em escrita narrativa de adolescentes. Verificou-se a dimensionalidade dos módulos em análise por meio de análise fatorial, satisfazendo critério para a realização das análises por meio da TRI. O módulo pré-teste foi ajustado para o modelo Logístico de dois parâmetros, com alfa de Cronbach de 0,82. Todos os itens apresentaram valores adequados de discriminação, entre 1,88 e 3,49. A dificuldade dos itens variou de -0,01 a 1,27. O módulo instrucional foi ajustado pelo modelo de resposta gradual de Samejima, apresentando alfa de Cronbach foi de 0,91. Observou-se, portanto, evidências de validade com base na estrutura interna do TIDE. Palavras-chave: estudos de validade; psicometria, adolescentes; teoria de resposta ao item. ABSTRACT -Computerized and Dynamic Writing Test: Evidence of validity based on IRTThis study aimed to investigate evidence of accuracy and validity based on the internal structure of the Computerized and Dynamic Writing Test, using the Item Response Theory. A total of 304 participants from Porto Alegre, aged between 10 and 17 years, were included. The aim of this study was to evaluate the adolescents' potential for learning in narrative writing. The dimensionality of the modules under analysis was verified by means of factorial analysis, satisfying criterion for the accomplishment of the analyses through IRT. The pre-test module was adjusted for the two-parameter logistic model, with Cronbach's Alpha of .82. All items presented adequate discrimination values between 1.88 and 3.49. The difficulty of the items ranged from -0.01 to 1.27. The instructional module was adjusted using Samejima's graded response model, presenting a Cronbach's alpha of .91. Accordingly, evidence of validity based on the internal structure of the CDWT was observed.

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