Welkowitz, Joan. <br/><br/>
Introductory statistics for the behavioral sciences / 
Joan Welkowitz, Barry H. Cohen, Robert B. Ewen. 
 - 6th ed. 
 - Hoboken, N.J. :  Wiley,  c2006. 
 - xxiii, 515 p. :  ill. ;  25 cm. 
<br/><br/> Various multi-media instructional resources are available to supplement the text. 
<br/><br/>Includes bibliographical references (p. 506) and index. 
<br/><br/><br/>eng. 
<br/><br/><label>ISBN: </label>9780471735472  TZS 8,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences<br/>Psychometrics.<br/>Sociology<br/>Educational statistics.
<br/><br/><label>Dewey Class. No.: </label>519.50243 WEL