“…Effect of group contingency strategy on physical education 3 More recently, two studies showed positive effects of the implementation of 'Fair Play Game' (Vidoni, Azevedo & Eberline, 2012;Vidoni, Lee & Azevedo, 2014) on middle school students' active behaviors in PE lessons, measured by heart rate monitors and pedometers, respectively. However, despite the 'Fair Play Game' strategy showing positive results in American middle to high socio-economic class students, there is still a need to examine its effectiveness in a more undeserved community, where lower levels of physical activity are evident (Brodersen et ., 2007;Stalsberg & Pedersen, 2010).…”