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Engagement matters: lessons from assessing classroom implementation of steps to respect: a bullying prevention program over a one-year period.. Prev Sci. 15(2):165-76.
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2014. Bullying at elementary school and problem behaviour in young adulthood: a study of bullying, violence and substance use from age 11 to age 21.. Crim Behav Ment Health. 21(2):136-44.
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2011.