10 CRICKET DOMINANCE 2007

10 CRICKET DOMINANCE 2007 - BIO 206L Midterm Exam 2007(mean...

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0 50 100 150 200 250 300 Number of  students 90-100 80-89 70-79 60-69 0-59 Score out of 100% BIO 206L Midterm Exam 2007 (mean 78%)
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Dominance Behavior of the cricket Gryllus domesticus
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AGENDA Hypothetico-deductive methodology Cricket as a representative insect Observation of Dominance behavior among crickets
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Hypothetico-deductive methodology Ask a question. Develop an hypothesis by induction. Make deductions from the hypothesis. Test the deductions. Use conclusions from the tests to validate or falsify the hypothesis .
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Inductive : reasoning from observed facts to broader principles. Specific to the general Deductive : reasoning from general principles to specifics. General to the specific
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Ask the question Once you have the question about some observed phenomenon, make a guess at what the answer is. That is your hypothesis. The “guess” is a not random thought. It’s an induction based on various observations, hunches, and clues.
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Remember! Hypothesis must be testable Data must be verifiable
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Experimentation Once the question has been asked and the hypothesis has been formulated, it’s time to test the hypothesis by performing experiments based on deduction. If the hypothesis is true, then any deductions derived from it must be true. If the deduction proves to be true, then we can say the hypothesis may be true.
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Deduction? Induction?
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A=inductive B=deductive In A Scandal in Bohemia , Holmes deduces that Watson had gotten very wet lately and that he had "a most clumsy and careless servant girl". When Watson, in amazement, asks how Holmes knows this, Holmes answers: It is simplicity itself . . . my eyes tell me that on the inside of your left shoe, just where the firelight strikes it, the leather is scored by six almost parallel cuts. Obviously they have been caused by someone who has very carelessly scraped round the edges of the sole in order to remove crusted mud from it. Hence, you see, my double deduction that you had been out in vile weather, and that you had a particularly malignant boot-slitting specimen of the London slavey.
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10 CRICKET DOMINANCE 2007 - BIO 206L Midterm Exam 2007(mean...

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