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Deductive and Inductive Reasoning Flashcards

7 cards from real OACP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. A patrol officer thinks: 'Every car theft in this precinct has involved a broken window. This car was stolen. Therefore it probably had a broken window.' This is:

    Answer: Strong inductive reasoning

    Using a consistent observed pattern to predict characteristics of a new case is inductive reasoning.

  2. In an OACP logic problem: 'No civilians may enter the command post. Sara is a civilian.' What follows necessarily?

    Answer: Sara may not enter the command post

    The universal negative ('no civilians') applied to a specific civilian produces a certain deductive conclusion.

  3. An investigator argues: 'Witnesses in high-stress situations often misremember details. This robbery was high-stress. Therefore the witnesses may have misremembered details.' This reasoning is:

    Answer: Sound inductive reasoning applied deductively

    Using an empirically established generalization as a major premise and applying it deductively is a common mixed form of reasoning.

  4. Which question tests DEDUCTIVE reasoning most directly?

    Answer: Given these two rules and this fact, what must be true?

    Deductive questions present rules and a fact, then ask what conclusion is certain — not probable.

  5. An officer concludes: 'Gang activity always increases when school is out. School is out. Therefore gang activity will increase.' If the premises are true, this conclusion is:

    Answer: Certain and necessarily true

    A valid deductive argument with true premises guarantees a true conclusion.

  6. A logical fallacy where an officer dismisses a suspect because they seem polite, assuming polite people never commit crimes, is best described as:

    Answer: Inductive overgeneralization

    Treating an imperfect generalization ('polite people never commit crimes') as universally true is inductive overgeneralization.

  7. Two officers read the same incident report. One says 'This must be gang-related' (deductive). The other says 'This looks like it could be gang-related' (inductive). The key difference is:

    Answer: The first officer's conclusion is certain while the second's is probable

    Deductive conclusions claim certainty while inductive conclusions claim probability based on evidence.