Problem size and mentally retarded children's judgment of commutativity.

  title={Problem size and mentally retarded children's judgment of commutativity.},
  author={A. James Baroody},
  journal={American journal of mental deficiency},
  volume={91 4},
The effects of problem size on judgments of commutativity by 51 moderately and mildly mentally retarded students were investigated. The task required subjects to judge whether commuted addition problems (e.g., 5 + 2 and 2 + 5) and noncommuted problems (e.g., 5 + 3 and 5 + 0) would have the same or different sum. Small problems had addends of five or less; large problems had at least one addend greater than five. The subjects' responses to the commutativity task were highly consistent across the… CONTINUE READING

From This Paper

Topics from this paper.


Publications citing this paper.

Similar Papers

Loading similar papers…