Mitchell, Mark L. <br/><br/>
Research design explained / 
 Research design 
Mark L. Mitchell, Janina M. Jolley. 
 - 8th ed. 
 - Belmont, CA :  Wadsworth Cengage Learning,  2013. 
 - xxiii, 723 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781133049838 (hbk.)  RM693.33 1133049834 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology.<br/>Psychology, Experimental--Research--Methodology.