Received: 18 June 2019
Accepted: 13 August 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: This study received approval from the Research Ethics Committee of Universidad Católica del Norte (F.M: 82–2017). Researchers were not directly involved with students’ training during the conducting of the research.
: Not applicable.
: The authors declare that they have no competing interests.