Article History
First Online: 31 July 2019
Compliance with Ethical Standards
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This trial was approved by the local ethics committee at the Institute of Psychology at the Johannes Gutenberg-University of Mainz, Germany (2015-JGU-psychEK-011).
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that there is no conflict of interest.