The study is based on the research analyses of K.V.  Petrides’ (2011) trait emotional intelligence construct verified by his Trait Emotional Intelligence Questionnaire-TEIQue. Verification of the EI trait construct by stepwise regression analysis confirmed that it is determined only to a certain extent by the Big Five personality factors theory (14%) (by the TIPI questionnaire, Gosling, 2003) and by perception and experiencing of positive (15%) and negative (13%) mental states (by the SEHW questionnaire, Džuka & Dalbert, 2002). Thus, the emotional intelligence trait as a consistent construct partially captures individual variability of emotional aspects otherwise scattered across personality theories.

The study presents the results of PIAAC measurements and focuses on teachers as mediators of education and their achievements in literacy and skills in reading and writing at home and at work. Multiple regression analysis is used in the research to examine the influence of independent variables - earnings, age, gender and reading index - on the level of teachers’ literacy. Values of the coefficient of determination vary from 0.05 (Poland) to 0.23 (Belgium). The results are compared at the country level and show the position of Slovak teachers in these measurements. Also, they highlight the most successful countries and point to the countries with positions similar to Slovakia. Based on the research findings, it can be stated that the higher level of literacy is associated with a higher level of writing and reading activities at work more than at home. An important finding is also the result that in all countries, the literacy level declines with age.