Katz, S <br/><br/>
Bidirectional experimental effects.  [electronic resource] 

 -  Psychological methods  Sep 2001 
 - 270-81 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>1082-989X 
<br/><br/><label>Standard No.: </label>10.1037/1082-989x.6.3.270  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Models, Psychological