the findings show that students in albania algeria canada denmark the dominican republic georgia indonesia jordan kosovo lebanon mexico moldova peru portugal qatar the russian federation hereafter russia sweden tunisia turkey the united arab emirates and the united states experience ebst more frequently all of these countries have an average on the index which is more than of a standard deviation higher than the oecd average in contrast austria beijingshanghaijiangsuguangdong china hereafter bsjg china finland japan korea netherlands spain and chinese taipei are among the countries with limited reliance on ebst in fact in countries ebst is more frequently experienced by students in disadvantaged schools ie schools in the bottom of the pisa index of economic social and cultural status escs compared with students in the top quarter of escs