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En el presente articulo pretendemos estudiar el proceso de ensombrecimiento y la prediccion que rea lizan los modelos esta blecidos en los juicios de contingencia para explicar este fenomeno. En dos e xperimentos, los sujetos establecieron sus juicios en una tarea experimental que consistia en predecir dos consecuencias en funcion de cuatro causas potenciales. Los dos experimentos diferian en cuanto al contenido de las causas y consecuencias (sintomas y enfermedades en el primero y letras y numeros en el segundo). Los resultados muestran que el contenido parece no afectar a los juicios aunque si ha y diferencias entre ellos en funcion de las contingencias objeti vas establecidas entre las causas y conse cuencias. De los modelos estudiados solo tres de ellos muestran ajustes acepta bles a los datos empir icos: Regla de Bayes, Delta O y el Modelo Asociativo. Manipulation of the content in the overshadowing in contingency judgments.This article studies the process of overshadowing and the predictions realized by the models of contingency judgments. In tw o different experiments, subjects were pr ovided with four cues, to which they had to respond in one of two possible outcomes. The two experiments differed with respect to the content of their cues and out comes: symptoms and diseases in the first experiment, letters and numbers in the second one. The r esults show that content does not seem to af fect the subjects’ judgment. Ho wever, the results do differ with respect to the contingencies esta blished between the cues and the subjects’ outcomes. Of all the models studied, only three proved to acceptably fit the empirical data: the Ba yes’ rule, the Delta O, and the Associative Model.
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