Gravetter, Frederick J. <br/><br/>
Research methods for the behavioral sciences / 
Frederick J. Gravetter, Lori-Ann B. Forzano. 
 - 3rd ed. 
 - Belmont, CA :  Wadsworth Cenage Learning,  c2009. 
 - xx, 614 p. :  ill., charts ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 599-604) and indexes. 
<br/><br/><label>ISBN: </label>0495509787 9780495509837 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology--Textbooks.<br/>Social sciences--Research--Methodology--Textbooks.<br/>Psychology--Research--Methodology--Textbooks.<br/>Social sciences--Research--Methodology--Textbooks.