Tüm alıştırma soruları

3960 soru

Soru 1Soru →

According to the municipal zoning code, any city planner who approves the designation of a High-Density Residential Zone (HDRZ) in a given neighborhood must first complete a Comprehensive Traffic Impact Study (CTIS) for that neighborhood. Completing a CTIS requires that the planner consult with both the Regional Transit Authority and the neighborhood's local association. However, formal consultation with a neighborhood's local association is impossible if that neighborhood lacks a legally registered civic charter. Currently, none of the neighborhoods located within the historic Westside district possess a legally registered civic charter.

If the statements above are true, which one of the following must also be true?

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Cevap: No city planner has approved the designation of a High-Density Residential Zone in any neighborhood within the historic Westside district.

Cevap

No city planner has approved the designation of a High-Density Residential Zone in any neighborhood within the historic Westside district.
The correct answer accurately reflects the contrapositive of the stimulus's logical chain. The text establishes that approving an HDRZ requires completing a CTIS, which requires consulting the local association. It also establishes that this consultation requires a civic charter. Because no neighborhood in the Westside district has a civic charter, it is impossible to consult their local associations. Consequently, a CTIS cannot be completed, meaning a city planner cannot approve an HDRZ there.

Adım Adım Çözüm

1
Diagram the primary conditional statements provided in the municipal zoning rules.
HDRZ Approved → CTIS Completed → (Consult RTA AND Consult Local Association).
To establish the necessary prerequisites for a city planner to legally approve a high-density zone.
2
Diagram the restriction regarding neighborhood civic charters.
No Civic Charter → Local Association Cannot be Consulted.
To integrate the limiting condition into the logical framework.
3
Form the contrapositive logical chain combining all premises.
No Civic Charter → Local Association Cannot be Consulted → CTIS Cannot be Completed → HDRZ Cannot be Approved.
To determine the unavoidable consequences when a neighborhood lacks a civic charter.
4
Apply the specific factual premise about the Westside district to the contrapositive chain.
Westside Neighborhood → No Civic Charter → HDRZ Cannot be Approved.
To draw a definitive conclusion that must be true based entirely on the provided text.

Anahtar Kavram

Chaining conditional statements and applying the contrapositive to draw a guaranteed deduction.
Soru 2Soru →

Evaluate the flawed logic presented in the arguments below. Connect each specific argument to the generalized description of its underlying error.

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Öğeler

Whenever a software development team relies heavily on automated testing, they produce highly stable applications. The new mobile app from Zenith Tech is highly stable, which proves that Zenith Tech's developers relied heavily on automated testing.
Historical data indicates that civilizations located near major river systems typically develop complex agricultural economies. It is therefore evident that settling near a major river system is what directly causes a civilization to develop a complex agricultural economy.
Any student who receives personal tutoring in mathematics will pass the final exam. Unfortunately, David did not receive any personal tutoring in mathematics this semester. We can conclude that David will fail the final exam.
Every single brick used in the construction of the historical monument is incredibly light and easy to carry. Therefore, the historical monument as a whole must be incredibly light and easy to carry.

Eşleşmeler

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Cevap

The arguments match their abstract flaws as follows: The software testing argument matches treating a sufficient condition as necessary. The river civilization argument matches inferring causation from association. The math tutoring argument matches concluding a result will not occur because a sufficient condition is absent. The brick monument argument matches assuming a characteristic of parts applies to the whole.
Each argument contains a distinct, identifiable logical error. The software argument affirms the consequent (illegal reversal). The river argument confuses correlation with causation. The tutoring argument denies the antecedent (illegal negation). The brick argument commits the fallacy of composition (part-to-whole). The correct pairings accurately align each argument's specific error with its generalized logical description.

Adım Adım Çözüm

1
Analyze the software development argument.
Identified a conditional reasoning flaw where the premise 'A implies B' is incorrectly reversed to 'B implies A' (affirming the consequent).
To match the argument with the generalized description of treating a sufficient condition as necessary.
2
Examine the river systems argument.
Identified a causal reasoning flaw where a correlation between rivers and agriculture is incorrectly treated as a definitive cause-and-effect relationship.
To find the abstract description describing causal inference drawn from mere association.
3
Analyze the mathematics tutoring argument.
Identified a conditional reasoning flaw where the premise 'A implies B' is incorrectly manipulated to 'Not A implies Not B' (denying the antecedent).
To match the argument with the description of concluding a result won't occur because a sufficient condition is absent.
4
Evaluate the historical monument argument.
Identified a composition flaw where the physical properties of a building's materials are improperly attributed to the building as a whole.
To find the abstract description of assuming parts apply unconditionally to the whole.

Anahtar Kavram

Parallel Flaw
Soru 3Soru →

Match each statistical paradox scenario with the statement that most effectively resolves its apparent discrepancy.

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Öğeler

A renowned medical center reported that its overall patient survival rate improved this year compared to last year. Paradoxically, the survival rate within every individual ward of the medical center was actually lower this year than it was last year.
During the past five years, the total annual number of reported bicycle thefts in the city of Belmont has doubled. Nevertheless, local law enforcement accurately claims that the risk of a bicycle being stolen in Belmont is lower now than it was five years ago.
A recent study found that adults who regularly take dietary supplements designed to boost immune function catch colds more frequently than adults who never take such supplements. Yet, immunologists maintain that these supplements actively help prevent colds.
Data reveals that over 80 percent of fatal traffic accidents occur in clear weather conditions, while fewer than 20 percent occur during heavy precipitation. However, safety experts continue to warn that driving in heavy precipitation is statistically far more dangerous.

Eşleşmeler

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Cevap

The correct pairings resolve each paradox by addressing its specific statistical mechanism: shifting subgroup weights for the hospital wards, expanding denominator sizes for bicycle thefts, self-selection bias for immune supplements, and differing base rates of exposure for driving conditions.
Each correct pair links a surface-level statistical contradiction with the hidden variable that mathematically resolves it: shifting subgroup weights, expanding denominator sizes, biased sample selection, and differing base rates of exposure.

Adım Adım Çözüm

1
Analyze the medical center survival rate scenario.
Identify a conflict between an overall average increasing and all subgroup averages decreasing.
This is a classic Simpson's Paradox, requiring a resolution that shifts the population weights toward the higher-performing subgroup.
2
Analyze the Belmont bicycle theft scenario.
Identify a conflict between rising absolute numbers of thefts and a falling rate of theft.
A rate is a fraction. If the absolute number (numerator) increases, the rate can only decrease if the total population of bicycles (denominator) increases at an even faster pace.
3
Analyze the dietary supplement scenario.
Identify a counterintuitive correlation where a preventative measure is associated with a higher frequency of the illness.
This suggests self-selection bias, where the preexisting risk level of the individuals choosing the treatment skews the data.
4
Analyze the weather and traffic accident scenario.
Identify a discrepancy between the absolute majority of accidents occurring in clear weather versus the claimed higher danger of precipitation.
This is resolved by accounting for the base rate of exposure: there is vastly more driving done in clear weather, creating a much larger opportunity for accidents.

Anahtar Kavram

Resolving Statistical and Proportional Paradoxes
Tahmini Süre:2m 30s
Soru 4Soru →

Architectural conservators have learned that applying rigid, modern synthetic resins to consolidate crumbling ancient stone masonry often accelerates the structure's destruction. The rigid resin prevents the natural stone from 'breathing,' causing trapped moisture to expand during temperature changes and shatter the stone. Similarly, when a multinational corporation acquires a struggling local business, imposing rigid, standardized corporate procedures on the local branch will likely accelerate its financial collapse.

Therefore, multinational corporations should refrain from imposing standardized procedures on the local businesses they acquire.

Which of the following, if true, most weakens the argument?

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Cevap: Unlike ancient stone, which possesses fixed physical properties, a local business consists of adaptable employees who can utilize new standardized procedures to resolve existing inefficiencies.

Cevap

The correct answer is the option stating that unlike ancient stone, a local business consists of adaptable employees who can utilize new standardized procedures to resolve inefficiencies.
The correct answer successfully weakens the argument by highlighting a critical, structural point of disanalogy. The original argument rests entirely on the assumption that a business will respond to rigid rules in the same catastrophic way that inanimate stone responds to rigid resin. By pointing out that human employees are fundamentally different from stone because they can adapt and actually use those rigid procedures to fix inefficiencies, this option severs the logical link between the base analog and the target conclusion.

Adım Adım Çözüm

1
Identify the argument's structure and method of reasoning.
The argument uses an analogy, comparing ancient stone masonry treated with synthetic resin to a local business subjected to standardized corporate procedures.
Understanding the core analogy is necessary to properly evaluate the argument's vulnerabilities.
2
Determine the main conclusion.
The conclusion is that multinational corporations should avoid imposing standardized procedures on acquired local businesses.
To weaken the argument, one must undermine the logical support for this specific conclusion.
3
Evaluate the options based on the task.
The task is to weaken the argument. The most effective way to weaken an argument by analogy is to point out a relevant point of disanalogy—a significant difference between the two things being compared that makes the projected outcome unlikely to occur in the target case.
Validating the logical connection between the premises and the conclusion reveals that the argument assumes human businesses react to rigidity exactly as inanimate objects do. Breaking this assumption destroys the argument.

Anahtar Kavram

Evaluating Arguments by Analogy
Soru 5Soru →

Botanists studying a temperate rainforest have established that any fungal species producing the enzyme lignase can successfully break down mature hardwood. Furthermore, most fungal species inhabiting the rainforest's upper canopy produce lignase, though no upper-canopy fungal species can survive prolonged freezing temperatures. Interestingly, every fungal species capable of breaking down mature hardwood requires a highly humid microclimate to reproduce, unless that species is capable of surviving prolonged freezing temperatures.

Which of the following statements can be properly inferred from the information provided above?

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Cevap: Most fungal species inhabiting the rainforest's upper canopy require a highly humid microclimate to reproduce.

Cevap

Most fungal species inhabiting the rainforest's upper canopy require a highly humid microclimate to reproduce.
The correct answer is derived by chaining the provided facts. First, because most canopy fungi produce lignase, and all lignase producers break down hardwood, most canopy fungi break down hardwood. Second, we know absolutely no canopy fungi survive freezing. The final rule dictates that any fungus breaking down hardwood must require a humid microclimate, UNLESS it can survive freezing. Since the canopy fungi that break down hardwood cannot survive freezing, the 'unless' exception does not apply to them. Therefore, this majority group of canopy fungi must require a humid microclimate.

Adım Adım Çözüm

1
Connect the 'most' quantifier to the first conditional rule.
Since most canopy species produce lignase, and all lignase producers break down hardwood, it follows that most canopy species break down hardwood.
This establishes a core characteristic (breaking down hardwood) that applies to the majority of the canopy species.
2
Analyze the restriction on canopy species regarding temperature.
No canopy species can survive prolonged freezing temperatures.
This establishes a universal negative characteristic for the entire canopy group.
3
Translate the 'unless' clause in the final premise into a standard conditional statement.
If a species breaks down hardwood AND cannot survive freezing temperatures, then it requires a highly humid microclimate.
The word 'unless' introduces a necessary condition negated. Thus, 'Requires Humid unless Survives Freezing' means 'If NOT Survives Freezing -> Requires Humid'.
4
Apply the conditional rule from Step 3 to the group identified in Steps 1 and 2.
Since most canopy species break down hardwood AND cannot survive freezing, most canopy species must require a highly humid microclimate.
The sufficient conditions for the final premise are entirely met by the majority of the canopy group.

Anahtar Kavram

Combining formal logic conditionals, 'unless' translations, and quantifier chaining.
Soru 6Soru →

According to city records, every commercial project approved by the Planning Board this year required an environmental impact study. Furthermore, any project that requires an environmental impact study is subject to a 60-day public review period. Records also indicate that most of the commercial projects approved by the Planning Board this year received a municipal development grant. However, under city charter, no project that receives a municipal development grant is exempt from the city's prevailing wage ordinance.

Based on the information provided, which of the following statements must be true? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: Every commercial project approved by the Planning Board this year is subject to a 60-day public review period.; At least some projects subject to a 60-day public review period are not exempt from the city's prevailing wage ordinance.

Cevap

The correct answers are the statement that every commercial project approved this year is subject to the review period, and the statement that at least some projects subject to the review period are not exempt from the wage ordinance.
Both correct statements can be logically deduced with complete certainty. The first follows directly from chaining two absolute rules: if a project is an approved commercial project, it needs an environmental study, and if it needs an environmental study, it requires a public review period. The second follows by combining quantifiers: since all approved commercial projects undergo public review, and most of them receive a grant (which means they cannot be exempt from the wage ordinance), it must be true that at least some projects undergoing public review are not exempt from the wage ordinance.

Adım Adım Çözüm

1
Diagram the absolute conditional statements to form a logical chain.
Commercial Project (CP) → Environmental Impact Study (EIS) → Public Review Period (PRP).
To establish the guaranteed baseline properties of all commercial projects approved this year.
2
Diagram the quantifier statements and negative conditional rules.
CP -[most]→ Municipal Grant (MG), and MG → Not Exempt (~Exempt).
To identify what is true for the majority of these commercial projects.
3
Synthesize the chains to find derivative inferences.
Since all CP are PRP, and most CP are MG (which means most CP are ~Exempt), there is an overlap: some things that are PRP must also be ~Exempt.
To systematically pre-phrase the necessary truths before evaluating the choices.

Anahtar Kavram

Drawing formal logic deductions by combining transitive conditional chains with proportion quantifiers (some/most).
Tahmini Süre:1m 45s
Soru 7Soru →

Legal Scholar: The proposed legislation mandating transparency for pre-trial risk assessment algorithms is intended to eliminate racial bias in bail decisions. Under this mandate, developers must publicly disclose the precise mathematical weights their algorithms assign to various risk factors. However, the datasets used to train these algorithms are heavily skewed by historically biased arrest records. Since merely publishing these weights will not alter how the underlying algorithms mathematically process this historically biased training data, the proposed legislation will ultimately fail to eliminate racial bias in bail decisions.

Which of the following are assumptions on which the legal scholar’s argument depends? (Select all that apply.)

Geçerli olan tümünü seçin

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Cevap: The requirement to disclose algorithmic weights will not compel developers to retrain their systems using unbiased data prior to publication.; Magistrates will not utilize the disclosed mathematical weights to systematically identify and counteract the bias in the algorithms' recommendations when making bail decisions.

Cevap

The correct assumptions are that the disclosure requirement will not compel developers to retrain their algorithms with unbiased data, and that magistrates will not use the disclosed weights to manually counteract the bias in their final decisions.
The argument concludes that the legislation will fail to eliminate bias in 'bail decisions' strictly because publishing weights does not alter how algorithms process biased data. For this conclusion to hold, the author MUST assume two things: first, that the threat of publication won't cause developers to fix the data beforehand (which would eliminate the bias), and second, that the end-users of the algorithm (the magistrates) won't use the newly transparent weights to manually correct the bias in their actual decisions. If either of these events occurred, the legislation could succeed, thereby destroying the author's conclusion.

Adım Adım Çözüm

1
Analyze the core argument structure.
Conclusion: The legislation will fail to eliminate racial bias in bail decisions. Premises: Transparency only forces the publication of weights; training data is biased; publishing weights doesn't change how algorithms process this data.
Deconstructing the stimulus separates facts from the author's inferential leaps.
2
Identify logical gaps between the premises and the conclusion.
The author assumes that because the legislation doesn't alter the algorithm's *internal math post-publication*, it cannot affect the *developer's behavior pre-publication* or the *human judge's final decision*.
Necessary assumptions almost always live in the unstated space between the exact mechanism described in the premises and the final outcome claimed in the conclusion.
3
Apply the Negation Test to candidate answers.
Negating the statement about developers retraining algorithms destroys the conclusion. Negating the statement about magistrates manually counteracting bias destroys the conclusion.
The Negation Test is the definitive proof of a necessary assumption. If negating an option invalidates the argument, that option is logically required.

Anahtar Kavram

Identifying Necessary Assumptions using the Negation Technique, particularly recognizing defender assumptions that rule out alternate pathways to success.
Soru 8Soru →

In an effort to promote sustainable industrial practices, the regional council has updated its environmental protection statutes. Under the new guidelines, a manufacturing facility is exempt from the annual carbon surcharge only if it relies primarily on renewable energy sources and does not discharge unmonitored effluent into adjacent waterways.

Which statement is logically equivalent to the principle governing the carbon surcharge exemption?

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Cevap: If a manufacturing facility either does not rely primarily on renewable energy sources or discharges unmonitored effluent into adjacent waterways, then it is not exempt from the annual carbon surcharge.

Cevap

The statement asserting that if a manufacturing facility either does not rely primarily on renewable energy sources or discharges unmonitored effluent into adjacent waterways, then it is not exempt from the annual carbon surcharge.
The correct answer accurately forms the contrapositive of the principle in the stimulus. The stimulus establishes a conditional relationship where being exempt from the surcharge requires two necessary conditions: relying on renewable energy AND not discharging unmonitored effluent. To form the logically valid contrapositive, we must reverse the conditions and negate them. Negating a compound condition joined by 'and' requires applying De Morgan's laws, changing the 'and' to 'or' while negating both individual terms. Thus, the condition becomes 'does not rely on renewable energy OR discharges unmonitored effluent'. Placing this in the sufficient condition yields a statement that perfectly matches the correct option.

Adım Adım Çözüm

1
Analyze the logical structure of the stimulus to identify the sufficient and necessary conditions.
Sufficient condition: Exempt from surcharge. Necessary condition: (Relies on renewable energy AND Does not discharge unmonitored effluent).
The phrase 'only if' introduces a necessary condition. Accurate baseline translation is required before manipulating the logic.
2
Begin forming the contrapositive by reversing the positions of the conditions and negating both sides.
NOT (Relies on renewable energy AND Does not discharge unmonitored effluent) -> NOT Exempt from surcharge.
A conditional statement is always logically equivalent to its contrapositive, which requires both reversal and negation.
3
Apply De Morgan's laws to simplify the negated compound necessary condition.
The negated condition becomes: '(Does NOT rely on renewable energy OR DOES discharge unmonitored effluent)'.
De Morgan's laws state that the negation of an 'AND' statement becomes an 'OR' statement where both individual terms are negated.
4
Combine the simplified terms to state the final, logically equivalent conditional statement.
If a facility does NOT rely on renewable energy OR it DOES discharge unmonitored effluent -> it is NOT exempt from the surcharge.
This completes the formation of the logically valid contrapositive, leading directly to the correct answer choice.

Anahtar Kavram

Forming Contrapositives of Compound Conditionals using De Morgan's Laws
Soru 9Soru →

Match each paradoxical scenario with the underlying factual finding that most effectively resolves its apparent discrepancy.

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Öğeler

An ancient urban settlement experienced a sudden abandonment of glazed ceramic storage vessels in favor of porous earthenware containers immediately after a technological innovation made high-fire glazing significantly less expensive.
A municipal government launched an expedited licensing program for residential electricians to alleviate prolonged wait times for household wiring upgrades, but the median completion time for permitted wiring projects increased substantially.
In a protected alpine reserve, wildlife managers erected exclusion fences to prevent non-native wild boars from foraging in subalpine meadows, yet the density of an endangered native wildflower declined sharply inside the fenced zones compared to unfenced areas.

Eşleşmeler

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Cevap

The ceramic vessel paradox matches the lead flux toxicity finding; the electrician licensing paradox matches the inspection failure bottleneck finding; the alpine reserve paradox matches the competitive weed suppression finding.
Each correct pairing provides a specific intermediary mechanism—chemical toxicity from cheaper fluxes, administrative delays from increased inspection failure rates, and competitive release of a dominant weed—that allows both observed phenomena in each scenario to be simultaneously true.

Adım Adım Çözüm

1
Isolate the conflicting premises in each scenario to identify the specific causal gap requiring explanation.
Scenario 1 contrasts cheaper production with abandonment; Scenario 2 contrasts increased labor supply with longer project durations; Scenario 3 contrasts pest exclusion with endangered plant decline.
Resolving a paradox requires identifying how two true, seemingly contradictory facts can logically coexist through an unstated third factor.
2
Evaluate the causal mechanisms provided in the factual findings to identify which finding provides the missing link for each scenario.
The toxic glaze chemical reaction explains why cheaper ceramics were rejected; the re-inspection bottleneck explains why more electricians led to slower completed jobs; the suppression of a worse competitor explains why boar exclusion harmed the target plant.
Each correct resolution must bridge both sides of its respective paradox without disputing the truth of either stated premise.
3
Verify that no matched finding exacerbates the contradiction or leaves the core outcome unexplained.
All three pairs exhibit complete 1-to-1 logical reconciliation.
A valid resolution on the LSAT must not merely introduce tangential facts or explain only one half of the discrepancy.

Anahtar Kavram

Resolving Apparent Discrepancies via Unaccounted Causal Mechanisms
Tahmini Süre:2m 0s
Soru 10Soru →

Passage A
For decades, the "standard of living debate" concerning the British Industrial Revolution has hinged almost exclusively on macroeconomic indicators, specifically the construction of real wage indices. Early historians, utilizing fragmented local wage data, predominantly championed a pessimistic view, arguing that the working class experienced stagnant or declining purchasing power between 1780 and 1840. Subsequent generations of economic historians revised these early indices by aggregating national data on wages and price deflators. This revisionist approach seemingly cemented an optimistic consensus: real wages began to climb steadily after 1815, suggesting that industrialization unequivocally improved the material conditions of the laboring classes.

However, the apparent triumph of this quantitative methodology masks deep structural flaws in the data. Real wage indices fail to capture the distribution of income within households, the intensity of labor required to earn those wages, or the qualitative degradation of the urban environment. Consequently, while the macroeconomic approach successfully tracked the expanding aggregate wealth of the nation, its reliance on narrow financial proxies rendered it an increasingly blunt instrument for assessing the holistic lived experience of the early industrial workforce, leaving the debate conceptually deadlocked.

Passage B
In recent years, the methodological impasse characterizing the standard of living debate has been circumvented by the emergence of anthropometric history. Rather than relying on the often-unreliable paper trails of wages and prices, researchers have turned to biological indicators—most notably, the final adult heights of military recruits—as a proxy for net nutritional status. Height is a cumulative record of the biological standard of living, reflecting the balance between caloric intake and the claims made on those calories by physical exertion and disease environments during the developmental years.

The application of anthropometric data to the Industrial Revolution yields a startling epidemiological paradox that shatters the optimistic consensus built on wage indices. While real wages were purportedly rising in the early nineteenth century, the average height of British workers was concurrently shrinking. This divergence suggests that whatever marginal gains were made in purchasing power were more than offset by the deleterious effects of rapid urbanization. The dense, unsanitary conditions of industrial cities fostered intense disease environments that exacted a severe metabolic toll on the working class. Therefore, the anthropometric approach does not merely supplement the traditional economic narrative; it actively subverts it, demonstrating that an increase in nominal material wealth can coexist with a profound deterioration in biological well-being.

Based on the relationship between the argumentative structures of Passage A and Passage B, arrange the following abstract analytical steps in the chronological order that they logically unfold across the two passages, from the initial premise to the final synthesis.

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence maps the progression from Passage A's establishment and critique of economic metrics to Passage B's introduction and application of biological metrics.
The correct order perfectly aligns with the overarching rhetorical arc bridging the dual passages. Passage A begins by outlining the traditional reliance on real wage indices to form an optimistic historical consensus. It then structurally pivots in its second paragraph to critique this method's inability to capture holistic lived experiences. Passage B picks up exactly where this critique leaves off, introducing anthropometric history as a biological solution to the methodological impasse. Finally, Passage B applies this newly introduced metric to demonstrate that biological well-being actually declined despite rising wages, thus fully subverting the initial consensus presented in the first paragraph of Passage A.

Adım Adım Çözüm

1
Analyze the structural progression of Passage A.
Passage A begins by describing how real wage indices formed an 'optimistic consensus' (Step 1), but concludes by exposing the 'deep structural flaws' of using financial proxies to measure lived experience (Step 2).
Understanding the internal logic of the first passage establishes the foundation and the conflict that the second passage will address.
2
Analyze the structural progression of Passage B.
Passage B opens by introducing anthropometric history (biological indicators) to solve the impasse left by Passage A (Step 3), and concludes by showing how this new data 'subverts' the original economic consensus (Step 4).
Mapping the second passage reveals how its rhetorical function directly builds upon the critique established at the end of the first passage.
3
Align the specific passage functions with the provided abstract descriptions.
The progression moves seamlessly from defining the economic metric, critiquing it, introducing the biological metric, and finally using it to overturn the initial consensus.
This abstract mapping verifies the chronological and logical flow required by the question stem.

Anahtar Kavram

Macro-structural mapping of comparative reading passages, specifically tracing how a methodological critique in one text serves as the explicit foundation for an alternative methodology in a subsequent text.
Tahmini Süre:2m 30s
Soru 11Soru →

Paleoclimatologist: Stalagmites preserve variations in oxygen isotope ratios that reflect local precipitation levels, with lower ratios of oxygen-18 to oxygen-16 indicating periods of heavier rainfall. A geochemical analysis of stalagmites from a cave in the Karst Plateau revealed a substantial decline in this isotopic ratio dating between 2200 BCE and 2000 BCE. Because several nearby agricultural settlements were abruptly abandoned during this exact period, historians have claimed that regional desiccation and prolonged drought caused the societal collapse. However, the isotopic evidence indicates that this historical claim is incorrect.

Which one of the following is an assumption required by the paleoclimatologist's argument?

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Cevap: The decline in the oxygen isotope ratio in the stalagmites was not caused by atmospheric or hydrological factors that operate independently of an increase in local rainfall.

Cevap

The argument depends on assuming that the decline in the oxygen isotope ratio in the stalagmites was not caused by atmospheric or hydrological factors that operate independently of an increase in local rainfall.
The conclusion relies on the geochemical premise that a lower oxygen-18 to oxygen-16 ratio indicates heavier rainfall, which contradicts the historians' drought hypothesis. If the observed decline in the isotope ratio were actually produced by other confounding atmospheric or hydrological mechanisms (such as changes in moisture source trajectories or condensation temperatures) rather than an actual increase in rainfall, the data would not disprove the occurrence of a drought. Therefore, ruling out such confounding factors is strictly required for the argument's conclusion to stand.

Adım Adım Çözüm

1
Identify the premises and the main conclusion of the stimulus
Premises establish that lower oxygen isotope ratios reflect heavier rainfall, that stalagmites in the plateau showed a sharp decline in this ratio between 2200 BCE and 2000 BCE, and that settlements were abandoned during this timeframe. The conclusion asserts that historians are incorrect in claiming that drought caused the societal collapse.
Clarifying the logical core exposes the gap between the geochemical data and the refutation of the drought claim.
2
Determine the necessary gap between the evidence and the conclusion
The paleoclimatologist infers from the isotopic decline that the region experienced wet conditions rather than drought. For this inference to hold, the isotopic ratio must genuinely reflect higher precipitation rather than an alternative confounding factor.
A necessary assumption must hold true for the premise to serve as valid counterevidence against the drought claim.
3
Apply the Negation Test to candidate statements
Negating the statement—supposing that the isotopic decline was driven by unrelated atmospheric or hydrological factors—breaks the link between lower ratios and increased rainfall, thereby destroying the author's refutation of drought.
If the negation of a statement causes the argument to fail completely, that statement is strictly necessary to the argument.

Anahtar Kavram

Identifying unstated necessary defender assumptions by applying the Negation Test to eliminate alternate explanations for evidence
Tahmini Süre:1m 45s
Soru 12Soru →

Passage A
For decades, the dominant paradigm in antitrust jurisprudence has rested on the "consumer welfare" standard. Rooted in neoclassical price theory, this framework posits that the sole legitimate objective of antitrust enforcement is to maximize economic efficiency, thereby preventing monopolistic practices that artificially inflate consumer prices or restrict aggregate output. Proponents of this view correctly argue that earlier antitrust enforcement was often chaotic, unpredictable, and economically illiterate, frequently penalizing companies simply for growing large through superior operational efficiency or technological innovation. By replacing vague, populist anxieties about corporate bigness with rigorous econometric modeling, the consumer welfare standard provides courts with objective, predictable metrics for evaluating business conduct. Under this paradigm, market concentration is not inherently suspect. Indeed, mergers that achieve substantial economies of scale may be legally permissible—and even economically desirable—even if they reduce the absolute number of competitors in a given sector. This is provided, of course, that those efficiencies are ultimately passed on to consumers in the form of lower prices or improved product quality. Attempting to weaponize antitrust law to address broader socio-political concerns, such as wealth inequality, the preservation of small businesses, or the political influence of large corporations, fundamentally misconstrues the purpose of economic regulation. It tasks judges with making subjective, ad hoc policy determinations that they are fundamentally ill-equipped to handle.

Passage B
The ascendance of the strictly price-centric "consumer welfare" standard represents a profound, historically unjustified narrowing of antitrust law's original statutory mandate. The extensive legislative history of foundational antitrust statutes reveals a deep, pervasive Congressional fear of concentrated private power and its inherently corrosive effects on democratic institutions. Early proponents of antitrust regulation understood that towering corporate behemoths threaten public welfare in myriad ways that simply cannot be captured by a narrow, mathematical calculus of retail prices. For example, a massive retail conglomerate might wield monopsony power to mercilessly squeeze independent suppliers and suppress worker wages across an entire industry. This causes widespread, structural economic harm even while the conglomerate continues to offer artificially cheap goods to consumers at the checkout counter. Furthermore, extreme market concentration reliably translates into disproportionate, unchecked political influence, allowing dominant firms to capture regulatory agencies, secure favorable tax treatment, and erect insurmountable barriers to entry for potential rivals. By obsessively focusing on short-term price effects and allocative efficiency, modern jurisprudence treats citizens merely as consumers, entirely ignoring their vital, intersecting roles as workers, independent producers, and participants in a functioning democratic society. Reviving the structuralist approach to antitrust law—which views excessive market concentration as an inherent, structural danger regardless of its immediate impacts on consumer pricing—is essential to restoring the law's original democratic function.

Based on the passages, how would the author of Passage A most likely respond to the assertion in Passage B that antitrust law should be used to combat the "disproportionate, unchecked political influence" of dominant firms?

Cevabı ve açıklamayı göster

Cevap: They would maintain that utilizing antitrust law to curtail such influence inappropriately forces the judiciary to make subjective policy decisions rather than applying predictable economic metrics.

Cevap

The correct answer states that the author of Passage A would maintain that utilizing antitrust law to curtail political influence inappropriately forces the judiciary to make subjective policy decisions rather than applying predictable economic metrics.
The correct answer accurately synthesizes the final two sentences of Passage A. When confronted with Author B's demand to use antitrust law to combat 'disproportionate, unchecked political influence,' Author A would point to their established position: using economic regulation to address 'the political influence of large corporations' improperly forces judges to make 'subjective, ad hoc policy determinations' rather than relying on the 'objective, predictable metrics' of the consumer welfare standard.

Adım Adım Çözüm

1
Analyze Passage B's assertion regarding political influence.
Passage B argues that antitrust law must be used to address 'extreme market concentration' because it leads to 'unchecked political influence' and regulatory capture.
Understanding the specific claim being made by Author B is the first prerequisite for predicting Author A's response.
2
Locate Author A's stance on using antitrust law for socio-political purposes.
In the final two sentences, Author A explicitly states that using antitrust law to address 'broader socio-political concerns,' explicitly including 'the political influence of large corporations,' misconstrues the law's purpose.
Finding the direct textual overlap regarding 'political influence' reveals Author A's exact perspective on the issue raised by Author B.
3
Synthesize Author A's reasoning for rejecting this approach.
Author A argues that addressing these concerns 'tasks judges with making subjective, ad hoc policy determinations' instead of using the 'objective, predictable metrics' provided by the consumer welfare standard.
A correct cross-author inference must accurately reflect not just what Author A would say, but the precise logic they would use to say it.

Anahtar Kavram

Cross-Author Inference
Tahmini Süre:2m 30s
Soru 13Soru →

Agricultural Researcher: In a recent field study, apple orchards that maintained wildflower strips between tree rows had 40 percent fewer infestations of codling moth larvae than adjacent orchards with bare soil between rows. Because wildflower strips attract parasitic wasps that lay eggs in codling moth larvae, the researchers concluded that the presence of these wasps was responsible for the lower infestation rates in the wildflower-bordered orchards.

Which one of the following, if true, most strengthens the agricultural researchers' argument?

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Cevap: Orchards with wildflower strips exhibited a significantly higher proportion of parasitized codling moth larvae than did orchards with bare soil.

Cevap

The statement that orchards with wildflower strips exhibited a significantly higher proportion of parasitized codling moth larvae than did orchards with bare soil most strengthens the argument.
The conclusion asserts a specific causal mechanism: the parasitic wasps attracted by the wildflower strips caused the reduction in codling moth larvae. Evidence showing that orchards with wildflower strips actually had a significantly higher proportion of parasitized larvae directly substantiates this mechanism, making it much more likely that wasp activity was responsible for the lower pest levels.

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1
Identify the premises and conclusion of the argument
Premise: Orchards with wildflower strips had 40% fewer codling moth larvae. Premise: Wildflower strips attract parasitic wasps that lay eggs in these larvae. Conclusion: The presence of the parasitic wasps caused the reduction in larvae.
Understanding the precise gap between the premises and the conclusion is essential for strengthening the causal claim.
2
Evaluate the causal vulnerability in the author's reasoning
The author assumes that because the wasps are attracted to the wildflower strips, they are actively attacking the larvae in those specific orchards, rather than the reduction being caused by some other factor associated with the flowers.
Strengthening a causal conclusion requires either ruling out alternative causes or providing direct evidence that the proposed mechanism operated as claimed.
3
Select the choice that directly substantiates the proposed causal mechanism
Finding direct evidence of increased larval parasitism in the wildflower orchards confirms that the wasps were actively attacking the pest population, thereby substantiating the proposed mechanism.
Direct confirmation that the causal agent produced its expected intermediate effect provides strong support for the conclusion.

Anahtar Kavram

Strengthening Causal Claims by Confirming Mechanism
Soru 14Soru →

Neuroscientist: It is widely believed that memory consolidation occurs solely during rapid eye movement (REM) sleep. However, this consensus overlooks crucial neural dynamics. Recent neuroimaging reveals that slow-wave sleep generates high-frequency hippocampal ripples that transfer encoded information to the neocortex. Because the neocortex is the brain's long-term storage repository, this synaptic dialogue during slow-wave sleep is essential for stabilizing declarative memories. Hence, REM sleep cannot be the exclusive period during which memories are consolidated.

Which one of the following most accurately describes the role played in the neuroscientist's argument by the claim that the synaptic dialogue during slow-wave sleep is essential for stabilizing declarative memories?

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Cevap: It is an intermediate conclusion supported by evidence about hippocampal ripples and used to support the claim that memory consolidation is not limited to REM sleep.

Cevap

It is an intermediate conclusion supported by evidence about hippocampal ripples and used to support the claim that memory consolidation is not limited to REM sleep.
The statement that synaptic dialogue during slow-wave sleep is essential for memory stabilization is inferred from the factual premises regarding hippocampal ripples and neocortical storage. In turn, this finding provides the direct evidentiary support needed to conclude that REM sleep is not the exclusive window for memory consolidation. Therefore, it functions precisely as an intermediate (subsidiary) conclusion.

Adım Adım Çözüm

1
Identify the main conclusion and structural components of the stimulus.
The main conclusion is the final sentence: 'REM sleep cannot be the exclusive period during which memories are consolidated.' The opposing viewpoint is that memory consolidation occurs solely during REM sleep.
Determining the primary claim the author seeks to establish is necessary to evaluate the functional roles of supporting claims.
2
Analyze the immediate support relationships surrounding the targeted statement.
The targeted statement ('this synaptic dialogue during slow-wave sleep is essential for stabilizing declarative memories') is derived from two premises: (1) hippocampal ripples transfer information to the neocortex, and (2) the neocortex is the long-term storage repository.
A claim that receives support from premises is itself a conclusion.
3
Determine how the targeted statement relates to the main conclusion.
Because stabilizing declarative memories during slow-wave sleep means consolidation happens outside REM sleep, this intermediate conclusion directly supports the main conclusion.
A statement that is supported by premises and in turn supports the main conclusion functions as an intermediate (subsidiary) conclusion.

Anahtar Kavram

Distinguishing intermediate conclusions from main conclusions and basic premises
Tahmini Süre:1m 15s
Soru 15Soru →

Medical Director: Any pharmaceutical trial that demonstrates statistical significance requires a sample size exceeding five hundred patients. Most oncology research initiatives conducted at the university hospital require a sample size exceeding five hundred patients. Therefore, most oncology research initiatives conducted at the university hospital demonstrate statistical significance.

Which of the following arguments exhibits a pattern of flawed reasoning most similar to that exhibited by the argument above?

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Cevap: Any architectural proposal that qualifies for the civic sustainability grant must include a rainwater reclamation system. Most urban redevelopment blueprints submitted this year include a rainwater reclamation system. Thus, most urban redevelopment blueprints submitted this year qualify for the civic sustainability grant.

Cevap

The argument asserting that most urban redevelopment blueprints qualify for the civic sustainability grant because they include a rainwater reclamation system.
The correct argument exhibits the exact same formal skeleton and logical flaw as the stimulus: it sets up a universal conditional requirement (qualifying for the grant requires a rainwater reclamation system), asserts that 'most' members of a subset possess that required feature, and invalidly concludes that 'most' members of that subset therefore satisfy the sufficient condition (qualifying for the grant).

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1
Analyze the formal structure and quantifiers of the stimulus argument.
Premise 1 establishes a conditional rule: If a trial demonstrates statistical significance, then it requires >500 patients (Significant → >500). Premise 2 states a quantifier relationship: Most oncology initiatives require >500 patients (Most Oncology → >500). Conclusion draws an invalid quantifier inference: Most oncology initiatives demonstrate statistical significance (Most Oncology → Significant).
Deconstructing the argument into symbolic logic reveals the underlying structural defect.
2
Identify the specific logical defect (flaw).
The argument commits a quantifier-based affirming-the-consequent flaw: having >500 patients is merely a necessary condition for statistical significance, not a sufficient one. One cannot conclude that because 'most' members of a subset possess the necessary feature, 'most' satisfy the sufficient condition.
Isolating the precise logical flaw allows matching it to the correct structurally isomorphic answer choice.
3
Evaluate the choices to find the argument with identical premises, quantifiers, and logical flaw.
The argument concerning architectural proposals states: Qualify for Grant → Rainwater System; Most Blueprints → Rainwater System; Therefore, Most Blueprints → Qualify for Grant. This matches the conditional necessity, quantifier ('most'), and invalid inference step-for-step.
Parallel reasoning questions require an exact match in logical skeleton and quantifier strength.

Anahtar Kavram

Parallel Flaw: Illicit Quantifier Overlap and Affirming a Necessary Condition
Tahmini Süre:1m 30s
Soru 16Soru →

Economist: Traditional economic models assume that imposing monetary fines will reliably reduce unwanted behavior. However, empirical studies in childcare centers show that instituting late-pickup fees actually doubled tardiness, as parents began viewing late arrivals as a purchasable service rather than a breach of social obligation. Thus, introducing financial penalties into social-trust settings undermines intrinsic moral norms. Consequently, policymakers should avoid using monetary fines to regulate behavior in civic domains governed predominantly by community standards.

Based on the argument, in what sequence do the following claims function in the chain of logical support, ordered from foundational empirical evidence, through the intermediate conclusion, to the argument's main conclusion?

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct logical sequence begins with the empirical evidence regarding childcare center fees, proceeds to the intermediate conclusion that financial penalties erode moral norms, and ends with the main conclusion advising policymakers against utilizing fines in community domains.
The structural flow of the argument moves systematically from concrete evidence to a conceptual generalization and finally to a normative prescription: the empirical daycare observation provides the primary factual support for the intermediate conclusion regarding the erosion of moral norms, which in turn serves as the necessary justification for the overall conclusion directing policymaker actions.

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1
Identify the foundational empirical premise
The observation that childcare fees reframed tardiness and doubled late arrivals serves as direct factual evidence.
Foundational premises provide unproved starting evidence upon which broader claims depend.
2
Identify the subsidiary or intermediate conclusion
The claim that financial penalties undermine intrinsic moral norms is derived from the daycare evidence.
This claim generalizes the specific study to explain a broader psychological mechanism and bridges the evidence to the policy recommendation.
3
Identify the overarching main conclusion
The normative recommendation that policymakers should avoid fines in civic settings represents the final claim.
The entire argument is structured to justify this final policy recommendation, which receives support from the intermediate conclusion without supporting any subsequent claim.

Anahtar Kavram

Identifying hierarchical structural dependency in multi-tiered arguments
Tahmini Süre:1m 15s
Soru 17Soru →

Marine Biologist: The rapid proliferation of the invasive algae *Caulerpa taxifolia* in the Mediterranean basin has historically been driven by its ability to synthesize caulerpenyne, a toxin that severely deters indigenous herbivores. Recently, however, the algae's territorial expansion has stabilized despite an overall increase in regional water temperatures—a factor previously established to significantly accelerate the algae's general metabolic rate. Consequently, this unexpected stabilization must be the result of a severe localized depletion of essential benthic micronutrients required for the algae's structural growth.

Which one of the following is an assumption on which the marine biologist's argument depends?

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Cevap: The acceleration of the algae's metabolic rate caused by increased water temperatures does not substantially compromise its ability to synthesize effective levels of caulerpenyne.

Cevap

The acceleration of the algae's metabolic rate caused by increased water temperatures does not substantially compromise its ability to synthesize effective levels of caulerpenyne.
This is a classic 'Defender' assumption that blocks a fatal alternative explanation. The author notes that the algae stabilized *despite* an increase in metabolic rate, assuming this increased rate is purely beneficial. However, if accelerating the metabolic rate somehow shut down the algae's ability to produce its protective toxin (caulerpenyne), indigenous herbivores would eat the algae, perfectly explaining the stabilization. By concluding the stabilization *must* be due to micronutrient depletion, the author is implicitly assuming this alternative scenario (loss of toxin production leading to herbivory) is not happening. Negating this option destroys the argument by providing that exact alternative cause.

Adım Adım Çözüm

1
Identify the conclusion of the argument.
The stabilization of the algae must be the result of a severe localized depletion of essential benthic micronutrients.
This is the final claim the author is attempting to prove, signaled by the word 'Consequently'.
2
Identify the premises supporting the conclusion.
Premise 1: The algae spreads because a toxin (caulerpenyne) deters herbivores. Premise 2: Expansion stabilized despite warmer water, which accelerates the algae's metabolic rate.
These are the facts provided to establish the context and rule out warmer water as a negative factor for the algae.
3
Determine the logical gap between the premises and the conclusion.
The author assumes that because warmer water generally accelerates metabolic rate, it acts purely as a positive factor for the algae. The author concludes micronutrient depletion is the ONLY explanation for the stabilization.
The argument fails to consider that the increased metabolic rate might have a negative side effect (like reducing toxin production) that could act as an alternative cause for the stabilization.
4
Apply the Negation Test to evaluate potential assumptions.
Negating the correct answer yields: 'The acceleration of the metabolic rate DOES substantially compromise its ability to synthesize effective levels of caulerpenyne.'
The Negation Test is the most reliable way to verify a necessary assumption. If the negated statement destroys the argument, the original statement is strictly required.
5
Analyze the impact of the negated statement on the conclusion.
If the toxin is compromised, herbivores can eat the algae. This explains why the expansion stabilized, providing an alternative cause and destroying the conclusion that it 'must' be due to micronutrient depletion.
Because the negated statement ruins the argument's causal claim, the original statement is a necessary assumption.

Anahtar Kavram

Necessary Assumption (Defender)
Soru 18Soru →

Under the revised maritime regulations, all commercial freight vessels operating within the Obsidian Strait are required to feature double-layered hulls. Furthermore, any vessel featuring a double-layered hull incurs a maintenance cost that is significantly higher than that of a standard single-hulled ship. According to recent shipping logs, most of the vessels currently operating within the Obsidian Strait are commercial freight vessels.

If all of the statements above are true, which one of the following can be logically inferred?

Cevabı ve açıklamayı göster

Cevap: Most of the vessels currently operating within the Obsidian Strait incur a maintenance cost that is significantly higher than that of a standard single-hulled ship.

Cevap

Most of the vessels currently operating within the Obsidian Strait incur a maintenance cost that is significantly higher than that of a standard single-hulled ship.
The stimulus establishes a formal logic chain: all commercial freight vessels in the Obsidian Strait must have double-layered hulls, and all vessels with double-layered hulls incur higher maintenance costs. By combining these premises, we can deduce that all commercial freight vessels in the Obsidian Strait incur higher maintenance costs. Furthermore, the text establishes that most of the vessels currently operating in the Strait are commercial freight vessels. If most of the vessels in the Strait belong to a category that universally incurs higher maintenance costs, it must logically follow that most vessels in the Strait incur higher maintenance costs.

Adım Adım Çözüm

1
Analyze the conditional statements provided in the stimulus.
Premise 1: If a commercial freight vessel operates in the Obsidian Strait, it has a double-layered hull. Premise 2: If a vessel has a double-layered hull, it has higher maintenance costs.
To establish the formal logical rules governing the scenario.
2
Combine the conditional premises into a logical chain.
If a commercial freight vessel operates in the Obsidian Strait, it incurs higher maintenance costs.
Transitive property of formal logic (A implies B, and B implies C; therefore A implies C).
3
Apply the quantifier statement to the logical chain to determine the necessary inference.
Since 'most' vessels operating in the Strait are commercial freight vessels, and 'all' of those incur higher maintenance costs, it follows that 'most' vessels in the Strait must incur higher maintenance costs.
To deduce a final truth by applying a universal rule to a majority subgroup.

Anahtar Kavram

Combining formal conditional logic chains with quantifier statements ('most') to draw a valid necessary inference.
Tahmini Süre:1m 30s
Soru 19Soru →

A popular ride-sharing company recently introduced a feature allowing passengers to pay a premium fee to guarantee that their driver has a flawless 5-star rating. The company expected this feature to motivate drivers to provide better service in order to maintain a 5-star rating and access these lucrative premium fares. Surprisingly, since the feature's introduction, the overall rate of customer complaints regarding driver rudeness has significantly increased.

Which one of the following, if true, most helps to resolve the apparent discrepancy?

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Cevap: Passengers who pay the premium fee have significantly elevated expectations for their ride and are far more likely to file formal complaints over minor inconveniences than passengers taking standard rides.

Cevap

The statement indicating that passengers paying the premium fee have significantly higher expectations and are more likely to complain about minor inconveniences.
The correct answer successfully bridges the conflicting premises by showing how the mechanism intended to improve service (the premium fee) actually altered consumer behavior. If passengers paying the premium fee have much higher expectations, they will complain about minor issues that would normally go unreported. This perfectly explains why the rate of complaints increased even if the actual quality of service provided by the drivers improved or remained the same.

Adım Adım Çözüm

1
Identify the apparent discrepancy in the stimulus.
The company introduced an incentive for better service (a 5-star premium feature), but the rate of complaints about driver rudeness increased instead of decreasing.
Understanding the exact nature of the conflict is required to find the premise that bridges the gap.
2
Determine what characteristics the correct answer must have.
The correct answer must explain how introducing a premium feature for highly-rated drivers could logically lead to a higher rate of rudeness complaints, without contradicting the premise that the feature was intended to motivate better service.
A valid resolution allows both original premises to be true simultaneously.
3
Evaluate the options against the required characteristics.
The option regarding elevated passenger expectations resolves the paradox. It shows that the threshold for complaining was lowered by the very feature meant to guarantee quality, thus explaining the increased complaint rate.
This introduces a new, unstated contextual factor (changed consumer behavior) that perfectly bridges the conflicting facts.

Anahtar Kavram

Bridging Conflicting Premises by Identifying Unintended Consequences
Soru 20Soru →

City official: Following the implementation of a new ordinance restricting construction and commercial noise after 10 PM in the downtown district, the number of reported property crimes in the district dropped by 20 percent. This reduction was likely caused by the quieter environment, which allows residents to more easily hear the sounds of forced entry or tampering, thereby deterring criminals who fear being reported.

Which one of the following, if true, most strengthens the city official's argument?

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Cevap: The reduction in property crimes downtown was almost exclusively due to a drop in crimes involving loud mechanisms, such as shattering windows or prying metal doors.

Cevap

The option stating that the reduction in property crimes was almost exclusively due to a drop in crimes involving loud mechanisms.
The city official concludes that the drop in crime was caused by criminals being deterred because the quieter environment allows residents to hear forced entry. The correct answer strengthens this specific causal claim by showing that the reduction in crime was limited to crimes that actually produce the type of noise residents would hear. If all types of property crime had dropped equally, it would suggest a general deterrent. By isolating the drop to loud crimes, the correct answer strongly validates the official's specific hearing-based mechanism.

Adım Adım Çözüm

1
Analyze the argument's structure to identify the premise and the main conclusion.
Premise: Crime dropped 20 percent after a noise ordinance was enacted. Conclusion: The drop was caused by criminals being deterred because the quieter environment allows residents to hear forced entry.
Understanding the exact causal mechanism proposed by the author is necessary to evaluate and strengthen the argument.
2
Determine the task required by the question stem.
The task is to find the choice that most strengthens the city official's argument.
Identifying the question type guides the evaluation of the answer choices.
3
Formulate a strategy to strengthen the specific causal mechanism.
Look for an answer choice that either rules out alternative causes for the crime drop or provides data specifically validating the 'hearing-based' deterrence mechanism.
Strengthening a causal claim requires showing that the effect is specifically tied to the proposed cause.
4
Evaluate the answer choices against the strategy.
The correct option shows that the drop in crime was limited to crimes that make noise. This perfectly aligns with the official's proposed mechanism.
If silent crimes had also dropped, it would suggest a general deterrent like increased police presence. By isolating the drop to loud crimes, the correct answer strongly bolsters the official's reasoning.

Anahtar Kavram

Strengthening Causal Arguments by Validating the Proposed Mechanism
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