“…There is evidence that the school climate (Aveyard, Markham, Lancashire, Bullock, Macarthur & Cheng, 2004) and the nature of school environments influence substance use (Desousa, Murphy, Roberts & Anderson, 2008;Fletcher, Bonell, Sorhaindo & Strange, 2009) and violence in schools (Reid, Andrew, Hughey & Garcia-Reid, 2006). Therefore, interventions that increase student participation, improve relationships and promote a positive school ethos might reduce drug use (Bonell, Sorhaindo, Allen, Strange, Wiggins, Fletcher, …Rhodes, 2010;Fletcher, Bonell & Hargreaves, 2008).…”