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Logic 101 Practice Test: Inductive Logic - Causality and Mill’s Methods
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Causality is the relationship between a cause and its effect. It describes how one event, process, state, or object contributes to the production of another. The cause is partly responsible for the effect, and the effect is partly dependent on the cause.  For example, if event A happens and then event B happens, then A is the cause of B, and B is the effect of A.  Mill's methods are five methods of induction that analyze the differences and similarities between two or more groups of data to establish a causal relationship. The political philosopher John Stuart Mill described these methods... Show more
Logic 101 Practice Test: Inductive Logic - Causality and Mill’s Methods
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20 Questions

1. The correlational method used in the social sciences is closely related to which of Mill's methods?
2. A condition X is not a necessary condition for Y if:
3. Suppose that the owner of a 1980 Porsche Carrera notices that it takes 7 percent longer for her car to accelerate from zero to sixty than it did when the car was new. From a book relating to relevant parameters, she calculates that 2 percent of the reduction can be attributed to the fact that the car now has larger tires. Also, the alcohol content of the gas accounts for 2 percent, dirty spark plugs for 1 percent, and the fact that she now lives in Los Angeles, where the air is thicker than it was in Denver, where she bought the car, accounts for 1 percent. The owner attributes the remaining 1 percent to general aging of the engine. What method did the owner use in drawing this conclusion?
4. Suppose that an accountant for a bank notices a 5 percent reduction in profits for a certain quarter of operations. The accountant identifies four sources of increased costs that might account for this: increased salaries for some of the employees, increased utility costs, new computers for one of the departments, and increased real estate taxes. After further study, the accountant finds that each of these is responsible for a 1 percent reduction in profits, which adds up to a total of 4 percent. Unable to account for the final 1 percent loss, the accountant attributes it to embezzlement by one of the employees. What method did the accountant use in drawing this conclusion?
5. Suppose that a homeowner notices a 20 percent increase in the water bill for July. The homeowner traces this increase to four sources: a running toilet, a dripping faucet, a guest who visited for two days, and a broken sprinkler head. Further study shows that the broken toilet accounts for 8 percent of the increase, the faucet 2 percent, and the visiting guest 4 percent. The homeowner concludes that the remaining 8 percent is attributable to the broken sprinkler head. What method did the homeowner use in drawing this conclusion?
6. A condition X is not a sufficient condition for Y if:
7. Suppose that a sales consulting firm notices a correlation between the sale of house paint and number of home sales in an area. As the number of home sales increases, the sale of house paint increases, and vice versa. The consulting firm concludes that buying a home causes the new owners to purchase house paint. What method did the consulting firm use in drawing this conclusion?
8. When we say that water droplets in the atmosphere cause a rainbow to appear, we mean 'cause' in the sense of a:
9. Suppose that a sociologist notices a correlation between the rate of personal bankruptcy filings and the suicide rate. As the bankruptcy rate increases, the suicide rare increases, and vice versa. The sociologist concludes that personal bankruptcy is a cause of suicide. What method did the sociologist use in drawing this conclusion?
10. Suppose that a philosophy professor is able to monitor the amount of time her logic students spend working on a computerized tutorial program. When the students spend 5 hours on the program, their average grade increases by 4 percentage points. When they spend 10 hours on the program, their average grade increases by an additional 4 percentage points, and when they spend 15 hours working on the program, their grades increase by yet an additional 4 percentage points. The professor concludes that work on the tutorial program causes an increase in student grades. What method did the professor use in drawing this conclusion?
11. The retrospective study described in your textbook in which a nutritionist attempted to determine the effect of several vitamins and minerals on atherosclerosis is closely related to which of Mill's methods?
12. When we say that applying a force to the end of a coil spring causes the spring to stretch, we mean 'cause' in the sense of a:
13. When we say that stubbing your toe causes you to feel pain, we mean 'cause' in the sense of a:
14. The experiment described in your textbook involving the effect of a possible carcinogen on 100 mice is most closely related to which of Mill's methods?
15. When we say that sunshine causes the flowers to bloom, we mean 'cause' in the sense of a:
16. When we say that an electric current flowing through the filament of a light bulb causes the bulb to produce light, we mean 'cause' in the sense of a:
17. When we say that throwing a wine glass against a brick wall causes it to break, we mean 'cause' in the sense of a:
18. The controlled experiment in science is most closely related to which of Mill's methods?
19. The method used by Henrietta Swan Leavitt in her discovery involving Cepheids, which is described in your textbook, is similar to:
20. When we say that electrically charged particles in the atmosphere cause lightning, we mean 'cause' in the sense of a: