Stafford, D <br/><br/>
Effects of step size and break-point criterion on progressive-ratio performance.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Sep 1998 
 - 123-38 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1998.70-123  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Appetitive Behavior--physiology<br/>Columbidae<br/>Conditioning, Operant--physiology<br/>Linear Models<br/>Reinforcement Schedule