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Example of a Deductive Reasoning Argument
A deductive argument begins with a general hypothesis and moves to a specific conclusion. For example, starting with the hypothesis 'All living things require energy to survive' and the premise 'Ducks are living things,' one can logically conclude that 'ducks require energy to survive.' Conversely, if the initial hypothesis is flawed, the conclusion will also be incorrect, even if the logic is sound. For instance, the false hypothesis 'all ducks are born with the ability to see' would lead to the invalid conclusion that a specific duck named Quackers was born with sight.
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Example of a Deductive Reasoning Argument
A researcher begins with the general principle that 'all individuals who sleep less than six hours per night will show impaired cognitive performance.' The researcher then learns about a specific person, Alex, who consistently sleeps only five hours per night. Based on the initial principle, the researcher concludes that Alex must have impaired cognitive performance. However, upon testing, Alex shows above-average cognitive performance. Which statement best analyzes the flaw in the researcher's reasoning process?
Logical Hypothesis
Which of the following best describes deductive reasoning within a scientific context?