Los efectos perturbadores en las relaciones entre variables (ING)

  • Edwin Chaves Esquivel Escuela de Matemática (UNA) Escuela de Estadística, Universidad de Costa Rica.
Keywords: Confounding effect, suppressor effect, contingency tables.

Abstract

This article evaluated the importance of analyzing the disturbing effect that a specific characteristic can cause between two or more variables. In order to analyze the problem, it was used information got from a questionnaire that was applied to a sample of primary teachers on 1998. Through concrete examples it is possible to observe how the apparent statistical dependence between two variables disappear when its effect is controlled using a third characteristic. This happens because the variables used to explain a specific phenomenon are strongly correlate among them. This correlation sometimes causes a false effect on the original relation. The analyses are made by contingency tables and Chi-Square test. These tools showed their utility to determine some of the confused effects among the variables.
Published
2002-01-01
How to Cite
Chaves Esquivel, E. (2002). Los efectos perturbadores en las relaciones entre variables (ING). Uniciencia, 19(1), 43-52. Retrieved from https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/5719
Section
Original scientific papers (evaluated by academic peers)