HOS21004_2

HOS21004_2 - 1 DEVELOPMENT OF H YPOTHESIS O BJECTIVE AND S...

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Unformatted text preview: 1 DEVELOPMENT OF H YPOTHESIS, O BJECTIVE AND S UCCESS CRITERIA (HOS) 16.621 2 DEFINITION OF A HYPOTHESIS • Hypothesis A tentative explanation that accounts for facts and can be tested by further investigation; a theory Something taken to be true for the purpose of argument or investigation; an assumption • Experiment A test under controlled conditions that is made to demonstrate a known truth, examine the validity of a hypothesis , or determine the efficacy of something previously untried. American Heritage Dictionary , 3rd Edition 3 CONNECTION BETWEEN HYPOTHESIS AND EXPERIMENT • Hypothesis is a critical part of experiment design Translation: I have an idea and I want to see if it is valid Consequence: My experiment is designed so it can achieve this • “No experiment should be undertaken without a clear preconception of the form its results might take” Advice to a Young Scientist [Sir Peter Medawar] • The experiment is being carried out to assess the hypothesis, not to prove it – Examine engineering evidence critically – One school of thought is that the most critical scrutiny should be when experiment and hypothesis agree • “ The strength of your conviction about an idea has no bearing at all on whether it is true or not - and vice versa” [Medawar] 4 AN ACTIVE LEARNING EXERCISE For your project, with your partner, write down (or commit to memory) a short description of “your project” and what you think the Hypothesis is (Hypotheses are) I will ask groups to report on what they wrote You will get more chances to hone the H (and OS) An experimental observation is that a good HOS is a requisite (even a blueprint) for success in this subject 5 OBJECTIVES Ob-jec-tive, n ....
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This note was uploaded on 11/08/2011 for the course AERO 16.61 taught by Professor Earlmurman during the Spring '03 term at MIT.

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HOS21004_2 - 1 DEVELOPMENT OF H YPOTHESIS O BJECTIVE AND S...

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