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Working hypothesis

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Working hypothesis

A working hypothesis is a hypothesis that is provisionally accepted as a basis for further research[1] in the hope that a tenable theory will be produced, even if the hypothesis ultimately fails.[2] Like all hypotheses, a working hypothesis is constructed as a statement of expectations, which can be linked to the exploratory research [3] purpose in empirical investigation and is often used as a conceptual framework in qualitative research.[4][5]


Use of the phrase "working hypothesis" goes back at least two centuries.[6]

Charles Sanders Peirce came to hold that an explanatory hypothesis is not only justifiable as a tentative conclusion by its plausibility (by which he meant its naturalness and economy of explanation),[7] but also justifiable as a starting point by the broader promise that the hypothesis holds for research. This idea of justifying a hypothesis as potentially fruitful (at the level of research method), not merely as plausible (at the level of logical conclusions), is essential for the idea of a working hypothesis, as later elaborated by Peirce's fellow pragmatist John Dewey.

Peirce held that, as a matter of research method, an explanatory hypothesis is judged and selected[8] for research because it offers to economize and expedite the process of inquiry,[9] by being testable and by further factors in the economy of hypotheses: low cost, intrinsic value (instinctive naturalness and reasoned likelihood), and relations (caution, breadth, and incomplexity) among hypotheses, inquiries, etc. (as in the game of Twenty Questions).[10] The Century Dictionary Supplement definition of "working hypothesis"[2] reflects that perspective; Peirce may or may not have written it.[11] Peirce seldom used the phrase "working hypothesis," but he once commented about a related kind of a hypothesis that it was "a hypothesis, which like the working hypothesis of a scientific inquiry, we may not believe to be altogether true, but which is useful in enabling us to conceive of what takes place."[12] For Peirce the pragmatist, conceiving pragmatically of something meant conceiving of its effects in their conceivable implications as to informed practice in general including research.[13]

John Dewey used the concept of the working hypothesis as a pivotal feature in his theory of inquiry.[14] Contrary to the principles of verification and falsifiability, used in formal hypothesis testing found within dominant paradigms of 'normal' science,[15] working hypotheses were conceived by Dewey as neither true nor false but "provisional, working means of advancing investigation," which lead to the discovery of other unforeseen but "relevant" facts.[16] Dewey's development of the concept of the working hypothesis emerged from his contextualist epistemology in which absolute truth is unobtainable and replaced by "warranted assertability".[17] Thus, Dewey noted:[16]

The history of science also shows that when hypotheses have been taken to be finally true and hence unquestionable, they have obstructed inquiry and kept science committed to doctrines that later turned out to be invalid.

In Dewey's view, the working hypothesis is generated, not directly as a testable statement of expectation, but instead in order to "direct inquiry into channels in which new material, factual and conceptual, is disclosed, material which is more relevant, more weighted and confirmed, more fruitful, than were the initial facts and conceptions which served as the point of departure".[16]

Abraham Kaplan later described the working hypothesis as "provisional or loosely formatted" theory or constructs.[18]


Working hypotheses are constructed to facilitate inquiry; however, formal hypotheses can often be constructed based on the results of the inquiry, which in turn allows for the design of specific experiments whose data will either support or fail to support the formal hypotheses. In Unity of Science as a Working Hypothesis Oppenheim and Putnam argued that unitary science, in which laws from one branch could be equally useful by others, could only be accepted tentatively without further empirical testing. Thus they argued:[19]

We therefore think the assumption that unitary science can be attained through cumulative micro-reduction recommends itself as a working hypothesis. That is, we believe that it is in accord with the standards of reasonable scientific judgment to tentatively accept this hypothesis and to work on the assumption that further progress can be made in this direction.

For Putnam, the working hypothesis, therefore, represents a practical starting point in the design of an empirical research exploration. A contrasting example of this conception of the working hypothesis is illustrated by the brain-in-a-vat thought experiment. This experiment involves confronting the global skeptic position that we, in fact, are all just brains in vats being stimulated by a mad scientist to believe that our reality is real. Putnam argued that this proposition, however, rests on a "magical theory of reference" in which the existential evidence necessary to validate it is assumed.[20] Thus, the brain-in-a-vat proposition does not make for much of a hypothesis at all since there is no means to verify its truth. It does, however, provide a contrast for what a good working hypothesis would look like: one suited to culling potential existential evidence of the subject at hand.

A more concrete example would be that of conjectures in mathematics – propositions which appear to be true but which are formally unproven. Very often, conjectures will be provisionally accepted as working hypotheses in order to investigate its consequences and formulate conditional proofs.[21]


In the field of [14]

See also


  1. ^ Oxford Dictionary of Sports Science & Medicine. Eprint via
  2. ^ a b See in "hypothesis", Century Dictionary Supplement, v. 1, 1909, New York: The Century Company. Reprinted, v. 11, p. 616 (via Internet Archive] of the Century Dictionary and Cyclopedia, 1911.
    hypothesis [...]—Working hypothesis, a hypothesis suggested or supported in some measure by features of observed facts, from which consequences may be deduced which can be tested by experiment and special observations, and which it is proposed to subject to an extended course of such investigation, with the hope that, even should the hypothesis thus be overthrown, such research may lead to a tenable theory.
  3. ^ Shields, Patricia and Rangarjan, N. 2013. A Playbook for Research Methods: Integrating Conceptual Frameworks and Project Management. [1]. Stillwater, OK: New Forums Press. See Chapter 5
  4. ^  
  5. ^  
  6. ^ 1805, for example. See p. 118 in The Monthly Review; or Literary Journal vol. XLVII, May–August 1805, London: Printed by Straban and Preston (see its title page for year printed as "M,DCCC,V").
  7. ^ Peirce, C. S. (1908), "A Neglected Argument for the Reality of God", Hibbert Journal v. 7, pp. 90–112. See both part III and part IV. Reprinted, including originally unpublished portion, in Collected Papers v. 6, paragraphs 452–85, The Essential Peirce v. 2, pp. 434–50, and elsewhere.
  8. ^ Peirce, C. S., Carnegie Application (L75, 1902, New Elements of Mathematics v. 4, pp. 37–38. See under "Abduction" at the Commens Dictionary of Peirce's Terms:
    Methodeutic has a special interest in Abduction, or the inference which starts a scientific hypothesis. For it is not sufficient that a hypothesis should be a justifiable one. Any hypothesis which explains the facts is justified critically. But among justifiable hypotheses we have to select that one which is suitable for being tested by experiment.
  9. ^ Peirce, C. S. (1902), application to the Carnegie Institution, see MS L75.329-330, from Draft D of Memoir 27:
    Consequently, to discover is simply to expedite an event that would occur sooner or later, if we had not troubled ourselves to make the discovery. Consequently, the art of discovery is purely a question of economics. The economics of research is, so far as logic is concerned, the leading doctrine with reference to the art of discovery. Consequently, the conduct of abduction, which is chiefly a question of heuretic and is the first question of heuretic, is to be governed by economical considerations.
  10. ^ Peirce, C. S. (1901 MS), "On The Logic of Drawing History from Ancient Documents, Especially from Testimonies", manuscript corresponding to an abstract delivered at the National Academy of Sciences meeting of November 1901. Published in 1958 in Collected Papers v. 7, paragraphs 162–231; see 220. Reprinted (first half) in 1998 in The Essential Peirce v. 2, pp. 75–114; see 107–110.
  11. ^ See "Peirce Edition Project (UQÀM) - in short" from the Peirce Edition Project's branch at Université du Québec à Montréal (UQÀM), which is working on Writings v. 7: Peirce's work on the Century Dictionary. Peirce worked on the Century during the years between 1883 and 1909. Find "hypothesis" in PEP-UQÀM's list of words in Peirce's charge under "H". "Pragmatism" was also in Peirce's charge (see under "P", but Joseph M. Ransdell reported that PEP-UQÀM's director François Latraverse informed him that John Dewey actually wrote it (see Ransdell's 2006 January 13 post to peirce-l).
  12. ^ Peirce, C. S. Collected Papers v. 7, paragraph 534, from an undated manuscript.
  13. ^ Peirce, C. S. (1878), "How to Make Our Ideas Clear", Popular Science Monthly, v. 12, 286–302. Reprinted widely, including The Essential Peirce v. 1, pp. 109–123.
  14. ^ a b c Shields, Patricia and Rangarjan, N. 2013. A Playbook for Research Methods: Integrating Conceptual Frameworks and Project Management. [2]. Stillwater, OK: New Forums Press.
  15. ^ Thomas Kuhn (1962). The Structure of Scientific Revolutions (2nd ed.).  
  16. ^ a b c John Dewey (1938). Logic: The Theory of Inquiry.  
  17. ^ Patrick Rysiew (7 September 2007). "Epistemic Contextualism".  
  18. ^ Abraham Kaplan (1964). The Conduct of Inquiry: Methodology for Behavioral Science. Scranton, PA:  
  19. ^ Paul Oppenheim, Hilary Putnam (1958). Unity of Science as a Working Hypothesis.  
  20. ^ Hilary Putnam (1982). "Brains in a vat". Reason, Truth, and History.  
  21. ^ Ian Stewart (2003). "Mathematics: Conjuring with Conjectures".  
  22. ^ Baum, Kevin,2003. “Understanding the Line – Staff Relationship in Fire Service.” in Handbook of Conflict Management.’’ Edited by William Pammer and Jerri Killian. New York: Marcel Dekker.
  23. ^ Shields, Patricia M., 1998. "Pragmatism as a Philosophy of Science: A Tool for Public Administration", Research in Public Administration’’. Vol. 4:195-225.
  24. ^ Shields, Patricia M. 2003. “A Pragmatic Teaching Philosophy” Journal of Public Affairs Education’’. Vol. 9, No. 1: 7-12.
  25. ^ Swift, James T. 2010. "Exploring Capital Metro’s Sexual Harassment Training Using Dr. Bengt-Ake Lundvall’s Taxonomy of Knowledge Principles". Applied Research Projects’’, Texas State University.
  26. ^ Gillfillan, Abigail. 2008. "Using Geographic Information Systems to Develop and Analyze Land-Use Policies". Applied Research Projects’’, Texas State University.
  27. ^ Thornton, Wayne] 2000. "A Descriptive and Exploratory Study of the Ethics Program at Austin State Hospital: The Common Elements of the Program and Managers' Beliefs About the Purpose and Usefulness of the Program". Applied Research Projects’’, Texas State University.
  28. ^ Yin, Robert. 2007. Case Study Research: Design and Methods’’. 4th edition. Thousand Oaks, CA: Sage

External links

  • Working, Null, and Alternative hypotheses
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