Statistical indexes as the quality indicators for the readability and performability of academic texts

The primary aim of this article was to demonstrate the position of the readability criterion in the evaluation and selection of academic texts. Various textual examples were used to prove the importance of the analytical approach to the choice of suitable texts in the educational process. In the form of nominal scores, assessed by scales of statistical indexes, we can analyse readability as a quality criterion. Performability goes hand in hand with fulfilling the readability criterion