Cohen. Ronald Jay <br/><br/>
Psychological testing and assessment :   	  an introduction to tests and measurement/ 
Ronald Jay Cohen and Mark E. Swerdik 
 - Ninth edition 
 - New York:   	  McGraw-Hill Education,  c2018. 
 - xxix, 674 pages :   illustrations ;   26 cm. 
<br/><br/>Includes bibliographical references, glossary and index.