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Article History

First Online: 5 July 2019

Compliance with Ethical Standards

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: The authors declare that they have no conflicts of interest.

: Data were collected as part of a school-wide evaluation to inform school-wide social-emotional intervention planning. An opt-out procedure was used in which parents were sent a letter describing the data collection and provided with the opportunity to withdraw their child from participating by returning a passive consent form opting their child out of the data collection. Assent was obtained from all students before their participation. The de-identified data was approved by the University Institutional Review Board at Northern Illinois University after the school-wide evaluation report was complete.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.