Funding for this research was provided by:
Pedagogical University of Cracow
Article History
Accepted: 6 November 2020
First Online: 18 November 2020
Compliance with Ethical Standards
:
: The authors have no conflicts of interest to declare that are relevant to the content of this article.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.