Toddlers were asked to find a hidden toy based on one hidden in a scale model of the room, after varying periods of delay. Subjects experiencing a longer delay on the first trial performed more poorly than those experiencing the long delay later in the trials. Results indicate the difficulty for children of keeping a symbol-referent relation in…

Piaget's concept of "internalization" is analyzed and related to Bruner's representational theories of cognitive development. Cognitive structures are shown to be real exclusively in an actual representation. (Author/SDH)

Examined whether toddlers would use information presented through video to solve a retrieval problem. Found that 2.5-year-olds were very successful at finding a hidden toy based on viewing a televised hiding event, but 2-year-olds were not. Substantially better performance was achieved by other 2-year-olds who either watched or believed they were…