Welkowitz, Joan <br/><br/>
Introductory statistics for the behavioral sciences / 
Joan Welkowitz, Robert B. Ewen, Jacob Cohen 
 - 3rd ed. 
 - Orlando, Fla. :  Academic Press,  1982 
 - 369p. :  ill. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0127432701 
<br/><br/><label>LCCN: </label>81-68136 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychometrics