Graff, Richard B <br/><br/>
Two methods for teaching simple visual discriminations to learners with severe disabilities.  [electronic resource] 

 -  Research in developmental disabilities   
 - 295-307 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0891-4222 
<br/><br/><label>Standard No.: </label>10.1016/j.ridd.2003.08.002  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Autistic Disorder--rehabilitation<br/>Child<br/>Discrimination Learning<br/>Female<br/>Humans<br/>Intellectual Disability--rehabilitation<br/>Learning Disabilities--rehabilitation<br/>Male<br/>Task Performance and Analysis<br/>Treatment Outcome<br/>Visual Perception