Main Article Content
In previous works we developed and assessed a teaching program, ARDESOS v.1, with which we aimed to improve the fundamental skills of Critical Thinking. The results obtained were positive, but modest. After analyzing the limitations of the program we introduced certain modifications and assessed the new version. The changes involved designing the activities programmed by means of rubrics and making the students perform them with less direct orientation from the instructor. In sum specificity and initiative proved to be the key variables in the improved program, ARDESOS v.2. The data collected pointed to a significant improvement of the new version over the old one in the following aspects: a) version 2 improved all the fundamental dimensions, mainly in the pre- and post-test measurements, to a significant extent (Student’s t test); b) the effect size (Cohen’s d) was significantly higher, and finally c) these improvements in the program elicited better performance. Accordingly, an improvement in Critical Thinking can be achieved via an instruction design that attends to the factors that really induce change. Currently, these results have allowed us to successfully add a new improvement to the instruction, which we havere-evaluated.