Review the provided statements from four different individuals. Each statement contains exactly one distinct logical reasoning error. Pair each speaker's argument with the abstract description that correctly characterizes its fundamental flaw.
- Sociologist: A comprehensive ten-year study of municipal employees revealed that those who regularly participate in the city's voluntary physical wellness program take significantly fewer sick days on average than those who do not participate. Therefore, it is clear that participating in the wellness program effectively boosts the immune systems of its participants, causing them to fall ill less frequently.Takes for granted that one phenomenon causes another when the evidence provided only establishes that they are correlated.
- Retail Analyst: Data spanning the last decade shows that whenever a mid-sized retail store remains highly profitable for consecutive years, it consistently offers excellent customer service. Consequently, if our newly opened electronics boutique makes excellent customer service its top priority, the boutique is guaranteed to become a highly profitable business.Treats a condition that is required for a certain outcome as if it were enough to ensure that outcome.
- Police Chief: Residents have expressed concern about a rising wave of youth crime in our district. However, these fears are unfounded. Over the last five years, the percentage of overall crimes committed by juveniles in this district has dropped substantially, from 18 percent down to just 9 percent. Clearly, there are far fewer juvenile offenders on our streets today than there were five years ago.Draws a conclusion about an absolute quantity based exclusively on evidence regarding a relative proportion.
- Art Critic: The gallery director insists that this new sculpture is a profound masterpiece because it is entirely original. But her evaluation is obviously incorrect. The sculpture is constructed completely out of recycled industrial scrap metal and repurposed engine parts. Since all of its materials have been used before, absolutely nothing about the sculpture is original.Allows the meaning of a critical phrase to shift illicitly over the course of the argument.
Answer
The Sociologist's argument matches the correlation/causation flaw description; the Retail Analyst's argument matches the necessary/sufficient flaw description; the Police Chief's argument matches the absolute quantity/relative proportion flaw description; and the Art Critic's argument matches the shifting meaning/equivocation flaw description.
Each argument stimulus demonstrates a classic logical fallacy. The Sociologist assumes causation from correlation. The Retail Analyst confuses a necessary condition for a sufficient condition. The Police Chief conflates a relative proportion with an absolute number. The Art Critic shifts the meaning of the word 'original' mid-argument.
Step-by-Step Solution
Key Concept
Logical flaws involve identifiable reasoning errors, such as confusing correlation with causation, mistaking necessary conditions for sufficient ones, conflating proportions with raw numbers, and equivocating on key terms.