id	keyword
ajrhss-1498	students
ajrhss-1498	research
ajrhss-1498	group
ajrhss-1498	test
ajrhss-1498	achievement
ajrhss-1498	strategy
ajrhss-1498	teaching
ajrhss-1498	plan
ajrhss-1498	control
ajrhss-1498	physics
ajrhss-1498	items