Smith, J <br/><br/>
Direct estimation considered within a comparative judgment framework.  [electronic resource] 

 -  The American journal of psychology  1984 
 - 343-58 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-9556 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition<br/>Differential Threshold<br/>Humans<br/>Judgment<br/>Psychophysics<br/>Size Perception