Sax, Gilbert. <br/><br/>
Principles of educational and psychological measurement and evaluation / 
Gilbert Sax with James W. Newton. 
 - 4th  ed. 
 - Belmont, CA :  Wadsworth,  1997. 
 - xxix, 657  p. 
<br/><br/><label>ISBN: </label>0534257491 :  BSP 40 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational tests and measurements--United States.