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.


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.
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
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