Key points are not available for this paper at this time.
Marjorie Taylor, Bonnie M. Esbensen, Robert T. Bennett, Children's Understanding of Knowledge Acquisition: The Tendency for Children to Report That They Have Always Known What They Have Just Learned, Child Development, Vol. 65, No. 6 (Dec., 1994), pp. 1581-1604
Taylor et al. (Thu,) studied this question.