Jackson, Sherri L.,  1962- <br/><br/>
Research methods and statistics :  a critical thinking approach / 
Sherri L. Jackson. 
 - 4th ed. 
 - [Belmont, Calif.] :  Wadsworth Cengage Learning,  c2012. 
 - xviii, 510 p. :  ill. (some col.) ;  24 cm. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>9781111346584 (Hardcover) 1111346585 (Hardcover) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology.<br/>Psychometrics.<br/>Psychology--Statistical methods.