Corso-de-Zúñiga, Sandra http://orcid.org/0000-0002-7721-5275
Moreno-Jiménez, Bernardo
Garrosa, Eva
Blanco-Donoso, Luis Manuel
Carmona-Cobo, Isabel
Article History
First Online: 23 December 2017
Compliance with Ethical Standards
:
: The authors certify that there is no conflict of interest of any kind.
: The present study followed the ethical standards of the 1964 Helsinki declaration and its later amendments or comparable ethical standards on all procedures regarding human participants.
: The headmasters or headmistresses of the participating schools, and, in turn, the teachers who took part, voluntarily gave their consent to take part in the study after the aims and objectives of the research project were made known to them.