Calibration of a Chemistry Test Using the Rasch Model

The Rasch model was used to calibrate a general chemistry test for the purpose of analyzing the advantages and information the model provides. The sample was composed of 219 college freshmen. Of the 12 questions used, good fit was achieved in 10. The evaluation shows that although there are items of...

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Detalhes bibliográficos
Autores: Martín Guaregua, Nancy Coromoto, Díaz Torres, Consuelo, Córdoba Herrera, José Gilberto, Picquart, Michel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:México
Recursos:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
Repositorio:Revista Electrónica de Investigacion Educativa
Idioma:español
OAI Identifier:oai:ojs.redie.uabc.mx:article/288
Acesso em linha:https://redie.uabc.mx/redie/article/view/288
Access Level:acceso abierto
Palavra-chave:Item Response Theory (IRT)
Rasch model
Characteristic Graphical of Item (CGI)
chemistry.
Teoría de Respuesta al Reactivo (TRR)
modelo de Rasch
Curva Característica del Reactivo (CCR)
química.
Descrição
Resumo:The Rasch model was used to calibrate a general chemistry test for the purpose of analyzing the advantages and information the model provides. The sample was composed of 219 college freshmen. Of the 12 questions used, good fit was achieved in 10. The evaluation shows that although there are items of variable difficulty, there are gaps on the scale; in order to make the test complete, it will be necessary to design new items to fill in these gaps.