Science and Education Publishing American Journal of Educational Research 2327-6150 3 12 2015 12 4 Analysis of the Influence of Selected Sociodemographic Characteristics on the Effectiveness of Students in the Test of Selected Critical Thinking Skills at the Slovak University of Technology 1607 1614 EN Mária Bednáriková Department of Human Sciences, Faculty of Materials Science and Technology, Slovak University of Technology, Trnava, Slovakia Karol Kováč Michal Kratochvíla EDUCATION201531218 10.12691/education-3-12-18 2015 7 3 2015 10 23 2015 12 2 In this contribution we analyse the existence of statistically relevant correlations between students´ fruitfulness in the test regarding selected cognitive abilities and independent variables as they follow: age, gender, form of study, place of residence and previous studies (secondary grammar schools offering general education vs. secondary vocational schools that offer precisely specified vocational education). We have stated that there was statistically significant difference in the overall test efficiency when taking into consideration the criterion - previous studies. Based on this fact we point out that theoretical education supports the ability to abstract rational structure out of the problem situation and so it becomes the fundamental condition for deployment of critical analysis, evaluation and argumentation.