Article History
Received: 3 March 2020
Accepted: 11 April 2020
First Online: 30 April 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The current study was approved by the Psychology for Positive Development Research Center. The present study was conducted following the national professional code of ethics for psychologists (OPP), following national legislation.
: All school directors agreed to the implementation of the programs and schools sent consent forms to parents one month before the first assessment. Consent forms were sent and received via the regular school channels.