Examkin

Soru

Zorluk: Çok zorWeaken

Argument: To halt the depletion of the native Silverfin fish population, the regional fisheries agency replaced its length-of-season restrictions with a strict, industry-wide annual catch quota. Over the past three years, the total recorded weight of Silverfin caught has not exceeded the new quota limit, yet the overall Silverfin population has declined at a substantially faster rate than before. The agency concludes that the total allowable catch limit was set too high to enable the population to stabilize.

Statement: The argument is significantly weakened by the fact that the industry-wide nature of the quota incentivized fisheries to adopt non-selective drag netting to maximize their catch speed before the total quota is reached, resulting in massive, unrecorded deaths of pre-reproductive Silverfin.

Cevap: Cevap

Cevap

True. The provided statement accurately identifies a fact that undermines the agency's specific conclusion.
The statement correctly identifies that the new fact undermines the agency's conclusion. The agency concludes that the total catch limit was numerically too high. However, the new fact provides an alternative explanation for the population decline: the 'industry-wide' structure of the quota caused fisheries to change their methods, resulting in unrecorded juvenile deaths. This severs the causal link between the numerical height of the quota limit and the population decline, thereby weakening the argument.

Adım Adım Çözüm

1
Analyze the stimulus to separate the premises from the main conclusion.
Premise: Recorded catch met the new quota, but the population declined faster. Conclusion: The numerical limit of the catch quota was set too high.
Identifying the exact conclusion is necessary to determine what specifically must be weakened.
2
Identify the logical gap or assumption in the agency's reasoning.
The agency assumes that the recorded catch is the only variable affecting the population and that the numerical limit is the primary cause of the continued decline.
Weaken questions require attacking the unstated assumptions bridging the premises and the conclusion.
3
Evaluate the impact of the new fact presented in the statement on the agency's conclusion.
The fact introduces an alternative cause: the structural design of the quota (industry-wide) caused unrecorded juvenile deaths via a new fishing method.
If an alternative cause explains the observed effect (population decline), it weakens the agency's claim that the limit itself was the cause.
4
Determine the final truth value of the statement.
Because the fact successfully introduces an alternative explanation that severs the agency's causal link, the statement that 'the argument is significantly weakened' is True.
This confirms the statement accurately evaluates the logical impact of the new fact.

Anahtar Kavram

Alternative Explanations and Causal Flaws
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Konular

Weaken

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