RT Journal Article SR Electronic A1 POLČIC, Ľudovít T1 RESULTS OF THE CORRELATION ANALYSIS JF Trends in education YR 2009 VO 2 IS 1 SP 183 OP 186 UL https://tvv-journal.upol.cz/en/artkey/tvv-200901-0041.php AB In this article the author analyses the relations among variables from the point of view of their coherence, in other words to what extent do the chosen techniques follow the different variables, phenomenons and to what extent they are related.