Statistical analysis of academic results before and after four years of bologna

• Autores: Wilmar Hernández, Jordi Bonache Albacete, Carmen Cousido, Javier Palmero, Manuel Labrador, Antonio Alvarez Vellisco
• Localización: The International journal of engineering education, ISSN-e 0949-149X, Vol. 26, no. 6, 2010, págs. 1493-1502
• Idioma: inglés
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• Resumen

  • In this paper, a statistical analysis of the performance of telecommunication engineering students who were majoring in electronicsystems in the subject Analysis of Circuit I is conducted. Here, the marks of the students before and after four years of being subject toa student-centered teaching and learning approach, implemented as part of the changeover to the Bologna model, are compared. In thisresearch, the statistical population (i.e., marks of the students in 2005 and 2009) were analyzed in detail in order to identify thespecific changes after four years of ‘Bologna’. Mann–Whitney and proportion tests were used to analyze the effects of theimplementation of the Bologna process, which resulted in an improvement in the academic results of the students. In addition, modelsfor the marks of the years 2005 and 2009 were constructed. These models were very different from each other. A mixture of Gaussianswas used to model the 2005 marks, and the 2009 marks followed a Gaussian distribution. Thus, before the start of the educationalexperiment, in the year 2005, the statistical population was heterogeneous, consisting of two subpopulations, and at the end of it thedata resulted in being homogeneous. Therefore, the Bologna process has represented a passing from an unsatisfactory model for the2005 marks to a more ‘reasonable’ model for the 2009 marks.