Prototyp eines Bildschirmfarbtests

Purpose. The purpose of this study is to develop a new digital colour vision test. Material and Methods. Based on the principle of metamerism, a digital testing strategy was developed for efficient measurement of colour vision. Twentyfive subjects participated in the study, 21 of whom had normal colour vision and four of whom had a congenital colour vision disorder. Differences in colour vision were examined by monocular presentation of halfquadrants of different hues and degrees of saturation, and the algorithm calculated the colour vision defects that occurred based on the subjects’ responses. The following colour vision values were assigned from the data: a colour scale range of 2.76 – 7.18 for normal colour vision and greater than 7.18 for colour sense disorders. A second new colour scale assessed the type of colour vision disturbance: in the range of 0 – 0.3 were values for a deuteranomaly, in the range of 0.6 – 1.0 were values for a protanomaly, and a value of 1.0 corresponded to a tritanomaly. Results. The difference in colour vision between subjects with normal colour vision and those with a colour vision defect was confirmed (p < 0.001) by measuring the type and the extent of the colour vision disorder was determined. In the group of subjects with normal colour perception, a mean colour scale value of 3.41 ± 0.52 was determined. The extent of colour sense disturbance for the subjects with colour vision impairment was values of 7.18 – 14.33 according to the colour scale, indicating greater variability. Conclusion. The developed algorithm provided meaningful results regarding the colour perception of the test persons. It was possible to differentiate between normal colour vision and colour vision disorder could be shown. Furthermore, the variation between subjects with normal colour vision could be evaluated. Keywords. Colors, colour vision, colour sense disorders, colour test, software algorithm

Creative profile of IT specialists – an adaptation of Creative Behaviours Questionnaire for remote use with Software Development Specialists

Improvisation, innovation and adaptation, all of which are in close relationship with creativity, are very important throughout the whole process of the software development cycle and for every IT role involved in it. This tendency is very well visible especially among representatives of Agile practitioners, a group that has been rapidly growing in the last decades. In this paper we adapt pen-and-paper Creative Behaviours Questionnaire for remote, digital testing among specialists employed in the area of software development and IT. In the adaptation process the psychometric properties of the scale were confirmed, and the PCA and CFA analyses were conducted on the revised version of the scale. The CFA analyses, conducted for the first time on this questionnaire, revealed poor fit to the model for the whole scale, however a good fit was confirmed for the two subscales separately.

Digital Testing During the Pandemic Crisis

In 2020, the pandemic crisis caused by covid-19 led to some changes in global education. Consequently, primary and secondary schools as well as universities introduced distance learning in many countries all over the world. This situation mostly required, among other things, a new way of testing learners’ knowledge and skills. The objectives of this paper are to reveal university students’ opinions on computer-based tests in comparison with paper-and-pencil tests and to map their requirements concerning digital testing of English as a foreign language. The research sample includes 284 students of the Faculty of Business and Management, Brno University of Technology, Czech Republic. These students experienced online testing at home during the summer semester of 2019/20 as well as paper tests at school in the previous winter semester of the same academic year. Thereafter, they were asked to complete an anonymous online questionnaire. The results have shown that the learners were mostly satisfied with the introduction of online testing at home. However, if the electronic tests took place at school, not all of them would prefer this way of testing. Regarding tasks in digital tests, the learners gave priority to assignments based on multiple choice. Moreover, the respondents expressed their views on electronic devices and testing speaking skills on online platforms.