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References

  • Airasian, P. W., Bart, W. M., & Greaney, B. J. The analysis of a propositional logic game by ordering theory. Child Study Journal, 1975, 5, 1324.
  • Benefield, K. E., & Capie, W. An empirical derivation of hierarchies of propositions related to ten of Kaget's sixteen binary operations. Journal of Research in Science Teaching, 1976, 13, 193204.
  • Moshman, D. Consolidation and stage formation in the emergence of formal operations. Developmental Psychology, 1977, 13, 95100.