title: The value of the Piagetian framework for comparative cognitive studies.
abstract: Although the Piagetian framework has been used by numerous researchers to compare cognitive abilities of diverse species, the system is often criticized as implemented. I examine the various criticisms, suggest ways in which the system can be improved, and argue for the need for descriptive systems such as the Piagetian framework to complement programs that look for cellular and molecular bases or mathematical models to explain behavior.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D003071:Cognition; D004193:Discrimination Learning; D007360:Intelligence; D008960:Models, Psychological; D008962:Models, Theoretical