Understanding and interpreting educational research / 
by Ronald C. Martella ... [et al.] 
 - New York :  The Guilford Press,  2013 
 - xxii, 666 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781462509621 (pbk.) 9781462509744 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research--Methodology<br/>Psychology--Research--Methodology<br/>Education--Research--Evaluation<br/>Psychology--Research--Evaluation