Precisión de los estudiantes de psicología en la estimación de la asociación






Contingency tables are frequently used to present statistical information in the media and the Internet, as well as in technical documents used for professional work. However, they are rarely taken into account in the teaching of statistics, since their interpretation is considered easy. In this paper, we analyse the perception of association and the estimation of its intensity in contingency tables in a sample of psychology students. We observe similar responses in the three universities in the sample, and high consistency between the subjective perception of association and the accuracy of estimates, as well as better results than those in a previous study of Estepa (1994) carried out with pre-university students. However, the strategies used to judge the association are mostly incorrect and only influence the accuracy of the estimate in case of independence of the data. These problems may also be common in other students; consequently teachers should know these results to take them into account in their teaching.

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