Results of Renee Baillargeon's sliding carrot research may suggest that object permanence:
A. may not be present until much later than Piaget believed.
B. may be present at a much younger age than Piaget thought.
C. cannot be tested with violation-of-expectations methods.
D. can only be tested with carrots
Is the answer A?
http://www.jiskha.com/display.cgi?id=1341855652
http://www.ncbi.nlm.nih.gov/pubmed/1786712