Gravetter, Frederick J., <br/><br/>
Research methods for the behavioral sciences / 
Frederick J. Gravetter, Lori-Ann B. Forzano. 
 - 5e. 
 - Stamford, CT :  Cengage Learning,  2016 
 - xxiii, 628 pages :  illustrations ;  24 cm 
<br/><br/>Includes bibliographical references (pages 609-614) and indexes. 
<br/><br/><label>ISBN: </label>1305104137 (Student Edition) 9781305104136 (Student Edition) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology<br/>Social sciences--Research--Methodology