Below are four distinct arguments (Arguments 1-4), each exhibiting a specific logical gap, along with four abstract descriptions of methods to strengthen an argument. Match each argument to the abstract mechanism that most accurately describes how a valid strengthening premise would operate to resolve its specific structural vulnerability.
- Argument 1: A prominent sociological study reveals that municipalities with extensive public park systems boast significantly lower rates of cardiovascular disease among residents. The researchers conclude that regular access to public parks directly improves a population's cardiovascular health.Supports the causal inference by undermining the plausibility of a scenario in which the phenomenon identified as the effect actually preceded and actively brought about the phenomenon identified as the cause.
- Argument 2: Extinct dire wolves possessed exceptionally robust jawbones, structurally similar to those of modern spotted hyenas. Because spotted hyenas utilize their robust jaws primarily to crack large bones to extract marrow, paleontologists conclude that dire wolves also regularly engaged in bone-cracking behavior.Fortifies a conclusion drawn by analogy by supplying corroborative empirical data that confirms the behavioral similarity of the compared subjects while explicitly foreclosing an alternative utility for the shared physical trait.
- Argument 3: A recent survey of executives attending a premier summit on artificial intelligence found that 90% expect AI to render their current business models obsolete within a decade. Therefore, it is evident that the global business community overwhelmingly anticipates near-term, catastrophic AI-driven disruption.Validates a generalization by providing auxiliary evidence that a pronounced selection bias in the original evidence-gathering methodology did not distort the findings regarding the broader target population.
- Argument 4: Following the implementation of a rigorous new standardized curriculum in Province Y, high school graduation rates rose by 15% over a five-year period. The provincial educational board claims that the new curriculum is solely responsible for this marked improvement in graduation rates.Strengthens the causal claim by demonstrating that when the purported cause is absent, despite the continuous presence of other shared temporal and environmental factors, the purported effect is also absent.
Cevap
Argument 1 matches with undermining reverse causation; Argument 2 matches with fortifying an analogy; Argument 3 matches with addressing selection bias; Argument 4 matches with demonstrating effect absence without the cause.
Each argument exhibits a classic LSAT logical flaw that requires a specific structural fix. Argument 1 confuses correlation with causation and is vulnerable to reverse causality, which is resolved by ruling out that the effect preceded the cause. Argument 2 relies on an analogy that is fortified by eliminating alternative explanations for the shared trait. Argument 3 uses an unrepresentative sample, requiring validation that the bias does not distort the conclusion. Argument 4 assumes a temporal sequence implies causation, which is best strengthened by showing that the effect does not occur when the cause is absent, acting as a control group.
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Anahtar Kavram
Identifying structural vulnerabilities in distinct types of logical arguments (Causal, Analogical, Sampling, and Temporal) and determining their abstract strengthening mechanisms.
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