El modelo de Poisson generalizado inflado de ceros: una aplicación en el entorno educativo universitario

Authors

  • María Dolores García-Artiles Universidad de Las Palmas de Gran Canaria Spain
  • Emilio Gómez-Déniz Universidad de Las Palmas de Gran Canaria Spain
  • Nancy Dávila-Cárdenes Universidad de Las Palmas de Gran Canaria Spain

Keywords:

Modelo de Poisson generalizado, modelo de Poisson inflado de ceros, covariable, tutoría académica, educación universitaria

Abstract

This paper presents the zero-inflated generalised Poisson distribution, which is useful when there is a large presence of zeros in the sample. After presenting the model, we develop a specific program based on Mathematica, overcoming some limitations of alternative approaches such as STATA or EViews, which do not include the zero-inflated Poisson distribution among its routines. The advantages of the model used and the proposed program are illustrated with a real example that is very appropriate to its features, namely an analysis of the factors influencing university students’ attendance at tutoring sessions. This example is particularly suitable to show the usefulness of the methodology presented because it includes a large number of zeros, reflecting the many occasions on which the students do not attend these sessions. The students’ place of residence, their attendance at lectures and the application of continual assessment are variables that seem to account for attendance at tutoring sessions.

Published

2014-12-31

How to Cite

García-Artiles, M. D., Gómez-Déniz, E., & Dávila-Cárdenes, N. (2014). El modelo de Poisson generalizado inflado de ceros: una aplicación en el entorno educativo universitario. Revista Electrónica De Comunicaciones Y Trabajos De ASEPUMA, 15(2), 159–171. Retrieved from https://revistas.uma.es/index.php/recta/article/view/19955