More precisely defining and measuring the order-irrelevance principle.

  title={More precisely defining and measuring the order-irrelevance principle.},
  author={A. James Baroody},
  journal={Journal of experimental child psychology},
  volume={38 1},
R. Gelman and C. Gallistel (1978, Young Children's Understanding of Number, Cambridge, MA: Harvard Univ. Press) use two definitions of the order-irrelevance principle interchangeably: (1) count tags do not have to be assigned in a fixed order and (2) the order in which elements of a set are enumerated does not affect the cardinal designation of the set. A study involving 107 kindergarten and first grade children indicates that the two are actually distinct concepts. Apparently, a willingness to… CONTINUE READING

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