Children show less evidence of nominal realism (treating the name and its object as the same) after participating in an arbitrary naming task, but older children do not show as much development away from nominal realism as Piaget postulated. (RL)

Proposes that cognitive developmental stages can be accounted for in terms of information processing factors which limit the highest level of cognitive system which children can attain at any given age. Delineates four progressively more complex levels of cognitive mediation of the environment. Two experiments which support the developmental model…