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Method of Difference

Method of Difference Adam and Bill order Chinese food. They both have Kung Pao beef and Szechuan bean curd, but Bill doesn’t try the chicken lo mein. An hour later, Adam becomes violently ill, with vomiting and stomach cramps. These symptoms resemble those of food poisoning.

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Method of Difference

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  1. Method of Difference Adam and Bill order Chinese food. They both have Kung Pao beef and Szechuan bean curd, but Bill doesn’t try the chicken lo mein. An hour later, Adam becomes violently ill, with vomiting and stomach cramps. These symptoms resemble those of food poisoning.

  2. Adam: beef, bean curd, chicken Event Bill: beef, bean curd  No Event Method of Difference

  3. Method of Agreement Alex and Jenny go to a cookout. They both eat BBQ ribs. Jenny has a side of cole slaw. Alex has a side of potato salad and apple pie for dessert. Later, they both end up with severe headaches. What is the cause of these symptoms?

  4. Alex: ribs, potato salad, pie Event Jenny: beef, cole slaw  Event Method of Agreement

  5. Joint Method of Agreement & Difference Ben, Colleen, and Jeana all had headaches. Ben took aspirin with caffeinated coffee. Colleen took ibuprofen with caffeinated coffee. Jeana took acetaminophen with decaffeinated coffee. Ben and Colleen’s headaches went away, but Jeana’s did not. What could have resulted in Ben and Colleen’s headache relief?

  6. Ben: aspirin, caffeinated coffee  Event Colleen: ibuprofen, caffeinated coffee  Event Jeana: acetaminophen, decaffeinated coffee  No Event Joint Method of Agreement & Difference

  7. The Flashlight You have two battery-operated, bulb-type flashlights.  The green one works; the blue one doesn't.  You switch batteries.  The green flashlight no longer works, but the blue one does.  Why is this?  Which of Mill’s Methods explains this situation?

  8. Green: B1, L1 Event Blue: B2, L2 No Event Blue: B1, L2 Event Method of Joint Agreement & Difference

  9. Method of Concomitant Variation When I run regularly, my right knee hurts. When I don’t go running, my right knee doesn’t hurt.

  10. Method of Concomitant Variation S1: When people intake more than 30 mg. of saturated fat, the diastolic number of their blood pressure increases above normal (80). S2: When people intake less than 30 mg. of saturated fat, the diastolic number of the diastolic number of their blood pressure is closer to normal (80).

  11. Pasteur Explain why this test was convincing. Which of Mill’s methods does Pasteur’s experiment employ?

  12. Pasteur Exposed: Broth1, A1 Event Sealed: Broth1, A2 No Event Method of Difference

  13. Getting Women in the Mood ♀ Rats: C, ♂1 Event ♀ Rats: No C, ♂1 No Event Method of Difference

  14. Getting Women in the Mood • Which of Mill’s Methods explains how this experiment was set up?

  15. Getting Women in the Mood Could also conduct the experiment using the Method of Agreement, Joint Agreement & Difference, and Concomitant Variation

  16. Getting Women in the Mood • ♀ Rats: Caffeine, Romantic Flick, Sexy ♂ Rats Event • ♀ Rats: Caffeine, Disco, Homely ♂ Rats Event Method of Agreement

  17. Getting Women in the Mood • ♀ Rats: Caffeine, Romantic Flick, Sexy ♂ Rats Event • ♀ Rats: Caffeine, Disco, Homely ♂ Rats Event • ♀ Rats: Popcorn, Romantic Flick, Sexy ♂ Rats No Event Joint Method of Agreement & Difference

  18. Getting Women in the Mood Increase in the amount of caffeine given to ♀ rats increases the likelihood that they’ll find the ♂ rats appealing Decrease in the amount of caffeine given to ♀ rats decreases the likelihood that they’ll find the ♂ rats appealing Concomitant Variation

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