Lord Frederic M <br/><br/>
Applications of item response theory to practical testing problems 

 - Hillsdale  Lawrence Erlbaum Associates  1980 
 - xiii,274p 
<br/><br/><label>ISBN: </label>0-89859-006-X 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational - Tests and Measurement