Self-control is a key non-cognitive skill, which is frequently measured using self-report questionnaires containing items with rating scales. Such data, however, can be hindered by the differences in scale usage among respondents. This may lead to erroneous conclusions when comparing different groups of respondents. The aim of the thesis is to analyze the differences in self-control among students from different Czech upper-secondary schools based on their (unadjusted) self-reports and self-reports adjusted for the differences in scale usage using the anchoring vignette method. The empirical part of the thesis comprises two studies. In the first (pilot) study, we translate a scale to measure self-control, create anchoring vignettes and focus on the verification of the method's basic assumptions using the data from questionnaires and interviews with students. In the second (main) study, we compare the (un-)adjusted self-reports of self-control and the assessment of the vignettes between students from the selected upper- secondary schools of a different type in Prague (N = 312). We found differences in evaluation standards between students from different types of schools. Differences in scale usage among respondents indeed represent a real threat when comparing student self-reports of self-control....

This dissertation deals with the use of the Anchoring Vignette Method in educational research carried out to establish the level of information and communication technology (ICT) knowledge and skills, with the focus on Czech upper-secondary school students. The theoretical part describes curricular documents that define the ICT knowledge and skills. In the Czech Republic that means mainly the Framework Educational Programmes. Attention is also paid to the international document DigComp. The Anchoring Vignette Method with the focus on nonparametric approach of this method is described in detail too. The author also provides an overview of available Czech and foreign bibliography on ICT knowledge and skills research - including the International Computer and Information Literacy (ICILS, 2013 and 2018) - and on the use of the Anchoring Vignette Method in educational research. The empirical part includes the description of the steps taken in formulating anchoring vignettes, this being an integral part of the Anchoring Vignette Method, in accordance with the curricular documents of the Czech Republic, and the steps taken while formulating anchoring vignettes on the basis of the international document DigComp. The verification of the fulfilment of the Anchoring Vignette Method assumptions (vignette...