OVERSHADOWING AND ACQUISITION IN HUMAN CONTINGENCY JUDGMENTS

Abstract

This article studies the impact of the competition cues and the acquisition in human contingency judgements. For that matter we will use an overshadowing task similar to Gluck and Bower`s where it studies the judgments in different moments of the experiment task ( Experiments 1 and 2). In this way ( Experiments 3 and 4) studies if the process of judgments acquisition is a phenomenon caused by the repetition of the measuring or if it is caused independently of the times in which subjects make judgments. We also study the fitting of the empirical dates with simulate dates, starting from the principal normative models propose in this area. The results of overshadowing show a significant effect of the competition cues about the subject´s judgments. About the acquisition we don´t find a significant effect of this variable. Finally, the results of the comparisons between empirical-simulated judgments show that the model which produces the best fitting is Bayer´s Rule.