The change in the Bayesian reasoning university students during an academic semester

In this paper we present progress of an investigation that studies the change in the Bayesian reasoning in college students taking a first course in statistics. It develops a longitudinal study with 102 students. Three tests are designed to assess reasoning, which apply at different times during the semester. A descriptive analysis of the results shows that the teaching of the concepts of conditional probability and Bayes theorem had an effect on his reasoning, this influence was growing, but eventually decays reasoning, which was evidenced by the low results obtained at the end of the semester, which were even lower than the results at the beginning of the semester.