Propiedades psicométricas de un instrumento para evaluar la ejecución de una secuencia didáctica en educación superior

Aim. To analyze the psychometric properties of construct validity and reliability of an instrument to assess the didactic sequence. Methodology. The instrument was administered to 488 students enrolled in Bachelor’s Degrees in Preschool and Elementary Education; the students were working on the 2012 study plans. They were informed of the purpose of the research and the confidentiality of the results; they also were asked for their consent to use the data collected. The construct validity analysis implemented a cross-validation process involving an exploratory factor analysis (EFA) and a confirmatory factor analysis (CFA). Reliability was evaluated with Cronbach’s alpha. Results. The EFA revealed the correspondence of the factorial model obtained with the theoretical model, since only one factor was found to explain the 63% of variance, in which all items were represented. The CFA showed the empirical sustainability of the factorial model and optimal fit (Ratio χ2/gl: 2.19; GFI: 0.942; RMSAE: 0.063; RMR: 0.029; CFI: 0.977; TLI: 0.971). The study also confirmed the presence of convergent validity. Finally, the Cronbach’s alpha result was 0.931, indicating optimal reliability. Conclusions. The instrument has adequate psychometric properties. Therefore, its utilization ensures the acquisition of reliable results in the evaluation of didactic sequences in higher education. Objetivo. Analizar las propiedades psicométricas de validez de constructo y confiabilidad de un instrumento para evaluar una secuencia didáctica en educación superior. Metodología. Se aplicó el instrumento a 488 estudiantes de las licenciaturas en Educación Preescolar y Primaria que trabajaban los Planes de Estudio 2012. Se informó el propósito de la investigación, la confidencialidad de los resultados y se solicitó consentimiento para su uso. Para el análisis de validez de constructo se empleó un proceso de validación cruzada que involucró el análisis factorial exploratorio (AFE) y análisis factorial confirmatorio (AFC); la confiabilidad fue evaluada con el alfa de Cronbach. Resultados. El AFE reveló la correspondencia del modelo factorial obtenido con el modelo teórico, ya que únicamente se denoto un factor que explicó 63% de varianza, en el cual se encontraron representados la totalidad de ítems. El AFC mostró la sustentabilidad empírica del modelo factorial y óptimo ajuste (razón χ2/gl:2.19; GFI: 0.942; RMSAE: 0.063; RMR: 0.029; CFI: 0.977; TLI: 0.971). Finalmente se refiere la existencia