Skaggs, Gary. <br/><br/>
Test development and validation /  
Gary Skaggs. 
 - Los Angeles :  Sage,  ©2023. 
 - xvii, 390 pages :  illustrations ;  23 cm. 
<br/><br/> Includes appendices, bibliographical references and index.<br/> 
<br/><br/><label>ISBN: </label>9781544377148 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences --Methodology.<br/>Social sciences --Research.
<br/><br/><label>Dewey Class. No.: </label>DC 300.72  / Sk13