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Knowledge of results




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Knowledge of results is a term in the psychology of learning.[1][2] A psychology dictionary defines it as feedback of information:

"(a) to a subject about the correctness of [their] responses; (b) a student about success or failure in mastering material, or (c) a client in psychotherapy about progress".[3]

It describes the situation where a subject gets information which helps them to change behaviour in a desirable way, or to gain understanding. A primitive example is avoiding a behaviour after punishment. An advanced example is the way a human may improve understanding and behaviour after a teacher explains what was wrong with the previous effort.

There are a number of similar terms in psychology, but all of them have some problems.

  • KCR: this means "knowledge of correct results", which implies that there is a always a specific correct result.
  • Operant conditioning and reinforcement: this implies a behaviourist approach using "schedules of reinforcement" to "shape behaviour".
  • Feedback: this is a more general term, perhaps too general. It is often used for the way systems adjust to preset limits. The Watt "governor" which controlled steam engines is a classic example.

So, knowledge of results,[1] or sometimes immediate knowledge of results,[4] is a useful term. It can be used for any learning where a student (or any animal) gets information after the action. The information is about how satisfactory the action is. An early experiment on knowledge of results was the machine invented by Sidney Pressey, where a device both tested and taught multiple-choice questions.[5][6] Later work in training research and education used the term frequently.[7][8]

Conscious thought is not necessary for knowledge of results to have its effect. Research on implicit learning shows that complex information can be got by humans without their awareness.[9] This is also shown by experiments on animal learning which show the effects of knowledge of results on later behaviour. It seems likely that unconscious learning by results evolved first in early metazoa, and conscious thought very much later. This is what Reber calls the "primacy of the implicit", meaning implicit (unconscious) learning came first in evolution.[10]

References

  1. 1.0 1.1 Annett J. 1964. The role of knowledge of results in learning: a survey. In Educational Technology, De Cecco (ed), Holt, Rinehart & Winston, 279–285.
  2. Lumsdaine A.A. 1963. Instruments and media of instruction. In N.L. Gage (ed) Handbook of research on teaching. Chicago: AERA and Rand McNally, p619.
  3. Reber A.S. & E.S. 2001. The Penguin dictionary of psychology. London: Penguin, p381. ISBN 0-140-51451-1
  4. Rowntree, Derek 1966. Basically branching: a handbook for programmers. London: Macdonald, p41.
  5. Pressey S.L. 1926. A simple apparatus which gives tests and scores – and teaches. School and Society, 23 (586), 373–376.
  6. Lumsdaine A.A & Glaser R. (eds) 1960. Teaching machines and programed learning I: a source book. Washington D.C. National Education Association.
  7. Lumsdaine A.A. 1962. Experimental research on instructional devices and materials. In Glaser R. (ed) Training research and education, Columbia University Press, and 1965: Science Editions, Wiley, p260–263.
  8. Smode A.F. 1962. Recent development in training problems, and training and training research methodology. In Glaser R. (ed) Training research and education, New York: Columbia University Press, and 1965: Science Editions, Wiley, p471–477 and 484.
  9. Reber A.S. 1993. Implicit learning and tacit knowledge: an essay on the cognitive unconscious. Oxford University Press, p10. ISBN 0-19-510658-X
  10. Reber A.S. 1993. Implicit learning and tacit knowledge: an essay on the cognitive unconscious. Oxford University Press, Chapter 3: Evolutionary considerations: the primacy of the implicit.