Ray, William S. <br/><br/>
Statistics in psychological research 

 - New York  Macmillan  1962 
 - 303p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychometrics<br/>Psychology - Research<br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>150.72 RAY-;