Empirical Methods for Evaluating Educational Interventions (Educational Psychology). Phye, G. D., Robinson, D. H., & Levin, J. Academic Press, 2005.
Empirical Methods for Evaluating Educational Interventions (Educational Psychology) [link]Paper  bibtex   
@book{phye_empirical_2005,
	title = {Empirical {Methods} for {Evaluating} {Educational} {Interventions} ({Educational} {Psychology})},
	isbn = {978-0-12-554257-9},
	url = {http://gen.lib.rus.ec/book/index.php?md5=6288ECCA88BC9C73A71E2D7F68D2699E},
	urldate = {2016-10-13TZ},
	publisher = {Academic Press},
	author = {Phye, Gary D. and Robinson, Daniel H. and Levin, Joel},
	year = {2005}
}

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