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Philosophy 103: Introduction to Logic

Abstract:  Converse Accident or hasty generalization is the fallacy of drawing a general conclusion based on one or several atypical instances.

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I. Converse Accident: (hasty generalization) the fallacy of considering certain exceptional cases and generalizing to a rule that fits them alone. Note that the fallacy of converse accident is the opposite of accident.

  1. Thus, a general statement is made on the basis of insufficient evidence or on the basis of only a few examples.

    1. E.g., "Wow! Did you see that teenager run that red light? Teenage drivers are really pathetic."

    2. E.g., The following argument is raised to oppose the view that boys have greater inherent mathematical ability. "When I was four, my father taught me the beauty of numbers, and I have excelled in mathematics ever since. My conclusion? The males who grew up with a high aptitude for math are not spending enough time with their daughters." Nancy Whelan Reese, "Letters," Time 117, No. 1 (January 4, 1981), 6.

  2. The generalization is sometimes made on the basis of carelessly selected evidence

    1. E.g., "I interviewed ten people on Main Street in Greenwood on Friday night, and they all stated they would rather be there than watching TV. I conclude that the folks in Greenwood don't like to watch TV on Friday night."

    2. E.g., "As I drove to school this morning, not one car which was turning had its turn signal on. Thus, I conclude that drivers in South Carolina are not trained to drive very well."

    3. E.g., "The induction problem forever haunts us. How many instances of a class must be observed before one can be really sure? Having experienced two uncoordinated woman-drivers, am I justified in making a generalization about woman-drivers? (For too many men, a sampling of two seems to justify such a generalization. Women, of course, never make this sort of error.)"
      [James L. Christian, Philosophy (New York: Harcourt Brace Jovanovich,1998), ]

    4. As legislators, women make a difference. They are far more likely to identify problems of gender bias, and we know this firsthand. Cokie's mom, Lindy Goggs, served 18 years in Congress and authored legislation banning discrimination against women in bank lending practices.
      [Cokie Roberts and Steve Roberts, "Women Are Flexing Their Political Muscles," Index-Journal 94 No. 153 (September 30, 2012), 11A.]

  3. Converse accident, as with other fallacies, is determinable in context, and the argument sometimes has to be reconstructed:

    "[T]he [P]resident [commented] last February: ‘One of the proudest things in my three years in office is helping to restore a sense of respect for America around the world.’ In light of the uprising that included the burning of American flags in the Middle East and the murder of Americans in Libya, that's one more broken promise that can be added to a growing list."
    [Cal Thomas, "Distractions and Diversions," Index-Journal 94 Vol. 146 (September 24, 2012), 8A.]

    Two tragic events are cited in support of generalization that the President is not helping to restore a sense of respect for America around the world. Since these two examples are not particularly atypical examples, this converse accident is also a weak inductive argument because they do lend some probability to the unstated implicit or enthymematic conclusion.

  4. Fallacies of converse accident and hasty generalization are sometimes difficult to distinguish.

    1. Converse accident occurs when a generalization about all instances of a kind is based on either too few examples which are not known to be typical or based on instances of a different kind, whereas false cause occurs when the conclusion of a causal relation is based on a correlation in time or circumstance. The generalization in converse accident need not be causal, and the causal relation in false cause need not be general.

      1. E.g., "There's nothing you can't get used to. Just think about all the unpleasant things you've accepted as ordinary, like wading through traffic or dealing with a bad-tempered relative or coworker."
        [Yongey Mingyur Rinpoche, The Joy of Living (New York: Harmony Books, 2007), 44.]

        The argument is that since you got used to a few ordinary annoying situations, the conclusion then follows that you can get used to anything. Since the conclusion is not a causal generalization, the argument is converse accident rather than false cause.

      2. E.g., "[T]he market as a rule does better under Democratic presidents than their counterparts. Certainly, the last four years proves the point."
        [Robert E. Anderson, "Mailbag: Earnings and Interest," Barron's (November 12, 2012) 92 No. 46, 50.]

        The last four years refers to the first Barack Obama administration when the stock market rose about 20% and the correlation is being suggested between a Democratic President and an improving market. The general conclusion is said to follow from this one correlation that the stock market does better under Democratic leadership than it does under Republican leadership. Since no causal relation is explicitly being asserted in the conclusion, the better identification of this fallacy is converse accident.

    2. When the conclusion about a causal generalization is reached from a premise or from premises involving one or more atypical correlations or atypical causal relations either fallacy may be said to occur.

      E.g., "A balanced, healthy diet is the best remedy for disease in general. I have a cousin who is a breast cancer survivor, and she now consumes juiced fruits and vegetables in enormous quantities to keep herself healthy, and so far her cancer has stayed in complete remission."
      [Karen Lee, "Restoring Your Inner Balance -- How to Stop the Aging Process in its Tracks," Pick the Brain,, accessed April 8, 2012.]

      The conclusion that the remedy for all diseases is affected by a good diet is based on the reason cited of a cousin whose healthy diet has kept her cancer in remission. This example can be identified as either converse accident or false cause since a causal relation of remedying all diseases is concluded from the correlation or causal relation of one person remedying one disease.

II. As a quick check of your understanding of the fallacies of accident and converse accident, evaluate the following passages.

  1. "Former Brooklyn Dodger Joe Black, speaking in Clinton, helped put the drug situation in professional athletics in better perspective. The former pitcher, a black man, said he has no sympathy for the argument that pressures of the professional athlete's lifestyle can lead to drug abuse. “There are no pressures in professional sports that make you use drugs or booze. Jackie Robinson didn't use drugs. Willie Mays didn't use drugs. I didn't use drugs. That's a cop out,’ Black said." [Index-Journal 64 No. 99 (August 8, 1982), B-3.]

  2. "All persons admitted to Lander University must abide by its policies. Therefore you must abide by the university parking rules."

  3. The USDA policies for farmers are worthless.  Why I know a guy who collects thousands of dollars for not planting wheat and spends his spare time at the race track.

  4. "I'm generalizing from one example, here, but everyone generalizes from one example. At least, I do."
    [Steven Brust, Issola (New York: Macmillan, 2002), Ch. 14.]

  5. "The external world is simply the suggestion, the occasion, which sets you to study your own mind, but the object of your study is always your own mind. The falling of an apple gave the suggestion to Newton, and he studied his own mind; hr rearranged all the previous links of thought in his mind and discovered a new link among them, which we call the law of gravitation. It was not in the apple nor in anything in the centre of the earth. All knowledge therefore, secular or spiritual, is in the human mind."
    [Swami Vivekananda, The Complete Works of the Swami Vivekananda (Mayavati: Advaita Ashram, 1915), 46.

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