Variability in human performance / 
Thomas Jay Smith ... [et al.] 
 - Boca Raton, FL :  CRC Press,  2015 
 - xviii, 375 p. :  ill. ;  24 cm. 
 - Human factors and ergonomics .
 - Human factors and ergonomics .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781466579712 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Performance technology<br/>Variability (Psychometrics)<br/>Human engineering<br/>Evaluation