Full text
PDF






Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- GREEN E. J. Concept formation: a problem in human operant conditioning. J Exp Psychol. 1955 Mar;49(3):175–180. doi: 10.1037/h0048778. [DOI] [PubMed] [Google Scholar]
- GREEN E. J. Stimulus-variability and operant discrimination in human subjects. Am J Psychol. 1956 Jun;69(2):269–273. [PubMed] [Google Scholar]
