Brown, Frederick G., <br/><br/>
Principles of educational and psychological testing 
Frederick G. Brown. 
 - Hinsdale, Illinois  The Dryden Press  1970 
 - 468 pages ;   25 cm. 
<br/><br/>p. 441-452 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational tests and measurements<br/>Psychological tests