Tüm alıştırma soruları

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Soru 261Soru →

Read the following passage:

In the late nineteenth century, the movement to establish free public libraries in the United States gained significant momentum. Advocates for these institutions argued that public libraries would serve multiple vital civic functions. Primarily, they believed that libraries would provide working-class citizens with access to educational materials, thereby fostering a more informed electorate. Furthermore, proponents asserted that libraries would offer a safe and productive alternative to taverns and gambling halls. Finally, they argued that by centralizing book collections, public libraries would preserve important historical documents that might otherwise be lost to decay or private hoarding. However, despite their enthusiasm, these early advocates rarely focused on providing entertainment or popular fiction, viewing the library strictly as an institution for moral and intellectual uplift.

Based on the passage, early advocates for the establishment of free public libraries argued that these institutions would serve all of the following functions EXCEPT:

Cevabı ve açıklamayı göster

Cevap: Providing communities with a supply of popular fiction and entertainment

Cevap

Providing communities with a supply of popular fiction and entertainment
The correct answer accurately identifies the one function that advocates did not support. The final sentence of the passage states that these advocates 'rarely focused on providing entertainment or popular fiction,' directly contradicting this option and making it the correct exception.

Adım Adım Çözüm

1
Analyze the question stem to identify the task.
The word 'EXCEPT' indicates that four of the options will be functions explicitly supported by the passage, and one will be either unmentioned or contradicted.
Correctly identifying the exclusion indicator is necessary to avoid selecting a supported detail.
2
Scan the passage for the specific functions advocated by library proponents.
The text lists: access to educational materials, fostering an informed electorate, offering an alternative to taverns, and preserving historical documents.
Gathering the explicit details allows for systematic elimination of the incorrect options.
3
Evaluate the passage's stance on entertainment and fiction.
The final sentence clarifies that advocates 'rarely focused on providing entertainment or popular fiction,' contradicting the idea that this was an argued function.
This identifies the one option that is definitively excluded from the advocates' arguments, yielding the correct answer.

Anahtar Kavram

Exclusion Questions (EXCEPT/LEAST/NOT)
Soru 262Soru →

Mangrove forests are vital coastal ecosystems that provide a multitude of ecological and economic benefits. One of their most recognized functions is coastal protection; their dense, tangled root systems act as a natural barrier, dissipating wave energy and reducing the impact of storm surges on inland communities. Furthermore, mangroves serve as crucial nursery habitats for numerous marine species, offering juvenile fish and crustaceans shelter from predators before they migrate to open ocean environments. In addition to these physical benefits, mangroves are highly efficient carbon sinks. They sequester significant amounts of carbon dioxide from the atmosphere, storing it in their biomass and the underlying waterlogged soil for millennia. However, despite these benefits, mangrove ecosystems are increasingly threatened by aquaculture expansion, particularly shrimp farming, which requires the clearing of large tracts of coastal land.

According to the passage, the ecological and physical benefits of mangrove forests include all of the following EXCEPT:

Cevabı ve açıklamayı göster

Cevap: supplying the primary diet for mature open-ocean predators

Cevap

The option stating that mangroves supply the primary diet for mature open-ocean predators.
The correct answer is the only statement not supported by the passage. The text discusses mangroves providing shelter for juvenile marine species before they migrate, but it never asserts that mangroves provide the primary diet for mature open-ocean predators.

Adım Adım Çözüm

1
Analyze the question stem to identify the task.
The capitalized word 'EXCEPT' indicates that the correct answer will be the only option NOT listed as a benefit in the passage.
Recognizing the exclusion indicator is critical for selecting the right evaluation strategy.
2
Scan the passage for explicitly mentioned benefits and functions of mangrove forests.
Identified benefits include: acting as a natural barrier, dissipating wave energy, reducing storm surge impact, offering shelter for juvenile marine species, and storing carbon dioxide.
Creating a mental or written list of supported details allows for rapid elimination of wrong answers.
3
Evaluate each answer choice against the identified text details.
Four of the choices match the listed benefits. The statement about supplying the primary diet for mature open-ocean predators is completely absent from the text.
Eliminating supported statements reveals the single unsupported, unmentioned claim.

Anahtar Kavram

Identifying explicitly excluded or unmentioned details in a reading passage.
Tahmini Süre:1m 0s
Soru 263Soru →

Please read the following passage about the literary interpretation of Eliza Wentworth's poetry. Then, match each paragraph to its primary rhetorical function within the passage's overall structure.

Paragraph 1: For many years, literary critics evaluated the works of early 20th-century poet Eliza Wentworth primarily through the lens of her urban upbringing. Traditional scholarship argued that her frequent references to natural landscapes were merely metaphorical critiques of industrialization.

Paragraph 2: Recently, however, newly discovered letters between Wentworth and her sister reveal a deep, personal engagement with the rural environment of her family's summer estate. These letters describe specific botanical specimens and ecological patterns with precise accuracy, suggesting a literal rather than purely metaphorical interest in nature.

Paragraph 3: Consequently, a new school of literary interpretation has emerged. This approach, known as eco-criticism, argues that Wentworth's poetry should be read as early environmental advocacy rather than mere social critique. Eco-critics assert that her detailed natural descriptions were intended to foster appreciation for vulnerable ecosystems.

Paragraph 4: Accepting this eco-critical perspective fundamentally alters our understanding of Wentworth's legacy. It requires scholars to re-examine not only her published poems but also the personal writings of her contemporaries, potentially shifting the timeline of when environmentalism began to influence mainstream literature.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Paragraph 1
Paragraph 2
Paragraph 3
Paragraph 4

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

Paragraph 1 matches to the long-held consensus, Paragraph 2 matches to the newly uncovered information, Paragraph 3 matches to the novel interpretative framework, and Paragraph 4 matches to the broader consequences.
The passage follows a clear chronological-analytical structure. It begins by establishing the traditional view (consensus) in Paragraph 1. It then introduces new evidence (the letters) that challenges this view in Paragraph 2. Paragraph 3 presents the new theory (eco-criticism) based on the evidence. Finally, Paragraph 4 discusses the future implications of adopting this new theory.

Adım Adım Çözüm

1
Analyze the rhetorical purpose of Paragraph 1.
Identified that it describes a traditional, longstanding view of Wentworth's poetry among critics.
Understanding the starting point of the passage's argument is crucial for tracking its progression.
2
Analyze the rhetorical purpose of Paragraph 2.
Identified that it introduces newly discovered letters that contradict the traditional interpretation.
Tracking how the author transitions from the old view to new evidence is key to understanding the structure.
3
Analyze the rhetorical purpose of Paragraph 3.
Identified that it explains a new literary framework (eco-criticism) built upon the new evidence.
Recognizing the synthesis of new evidence into a formal theory is a common structural pivot in academic passages.
4
Analyze the rhetorical purpose of Paragraph 4.
Identified that it outlines the future implications of this new framework on scholarship.
Conclusions often shift from the specific argument to its wider impact on a field of study.

Anahtar Kavram

Identifying the structural flow and rhetorical purpose of each paragraph in an academic passage
Soru 264Soru →

The mid-nineteenth century witnessed the emergence of the Pre-Raphaelite Brotherhood, a group of English painters, poets, and art critics who sought to reform art by rejecting what they considered the mechanistic approach first adopted by Mannerist artists who succeeded Raphael and Michelangelo. The critical reception of their work has undergone significant and dramatic fluctuations over the past century and a half, reflecting broader shifts in aesthetic theory, cultural values, and historical methodology.

Initially, the Brotherhood enjoyed the ardent and almost unreserved championing of John Ruskin, the preeminent Victorian art critic. For Ruskin, the Pre-Raphaelites’ meticulous attention to botanical and geological detail, coupled with their insistence on painting directly from nature, represented a necessary and urgent corrective to the perceived artificiality of Royal Academy conventions. He praised their work with a fervor that often bordered on the prophetic, viewing their artistic endeavors not merely as aesthetic innovations but as profound moral triumphs that successfully restored spiritual truth to visual representation. Ruskin's unapologetic adulation established the dominant early narrative surrounding the movement, positioning its core members as courageous and uncompromising visionaries.

However, the advent of modernist art criticism in the mid-twentieth century brought a stark and unforgiving reversal in the Brotherhood’s fortunes. Critics such as Clive Bell and Roger Fry, who rigorously prioritized formal qualities—such as pure line, color, and geometric shape—over any narrative or moral content, found the Pre-Raphaelites profoundly deficient. From this strict modernist vantage point, the Brotherhood’s work was characterized by a cloying sentimentality and an obsessive, almost pathological literalism that stifled true artistic expression. These twentieth-century critics dismissed the movement with undisguised condescension, relegating it to the status of a quaint Victorian curiosity, entirely detached from the progressive and supposedly inevitable trajectory of European modern art.

Today, a more balanced and historically informed assessment is clearly required. While it is difficult for contemporary audiences to share Ruskin’s unalloyed enthusiasm—given the undeniable tendency of some Pre-Raphaelite works toward moralizing melodrama and narrative clutter—the outright dismissal by mid-century formalists now seems dogmatic, excessively rigid, and overly reductive. The Brotherhood’s early and daring experiments with brilliant, unmixed colors on wet white grounds, as well as their radical flattening of perspective, actually anticipated several key avant-garde developments of the late nineteenth century. Moreover, their organized willingness to challenge entrenched academic authority merits serious historical acknowledgment. Ultimately, the Pre-Raphaelites should be recognized not as the flawless saviors of British art that Ruskin imagined, nor as the mere sentimentalists mocked by modernists, but as complex transitional figures whose earnest, if occasionally flawed, innovations opened vital new avenues for visual expression.

Based on the passage, match each of the following individuals or groups with the phrase that best describes their overall attitude toward the Pre-Raphaelite Brotherhood.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

John Ruskin
Mid-twentieth century formalist critics
The author of the passage

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

John Ruskin pairs with uncritical enthusiasm and moral validation. Mid-twentieth century formalist critics pair with condescending rejection and dogmatic dismissal. The author of the passage pairs with measured appreciation and qualified endorsement.
The passage is structurally divided to present three distinct perspectives. The second paragraph characterizes Ruskin's view as overwhelmingly positive and morally focused. The third paragraph characterizes the modernist critics' view as entirely negative and dismissive. The fourth paragraph establishes the author's view as a middle ground that acknowledges the validity of some criticisms while ultimately endorsing the movement's historical importance.

Adım Adım Çözüm

1
Analyze the passage to determine John Ruskin's attitude.
Ruskin's attitude is identified as uncritical enthusiasm and moral validation.
The second paragraph explicitly states Ruskin provided 'unreserved championing' and viewed the art as 'profound moral triumphs.'
2
Analyze the passage to determine the attitude of mid-twentieth century formalist critics.
The critics' attitude is identified as condescending rejection and dogmatic dismissal.
The third paragraph notes these critics 'dismissed the movement with undisguised condescension,' and the fourth paragraph calls their dismissal 'dogmatic.'
3
Analyze the passage to determine the author's overall attitude.
The author's attitude is identified as measured appreciation and qualified endorsement.
The final paragraph shows the author rejecting both extremes, instead calling for a 'balanced' assessment that recognizes both the 'flaws' and the 'vital new avenues' opened by the artists.

Anahtar Kavram

Identifying Overall Tone and Attitude
Soru 265Soru →

Linguists analyzing the evolution of indigenous languages in the isolated Solenoid Archipelago observed that languages spoken by coastal fishing communities have an unusually high rate of phonetic simplification (the dropping of complex consonant clusters) compared to the languages of inland agricultural communities. The linguists also noted that when a massive seismic event forced several coastal communities to relocate inland a century ago, their languages quickly ceased undergoing phonetic simplification. The linguists hypothesize that the constant ambient noise of crashing ocean waves inherently degrades the oral transmission of complex phonetic structures, thereby causing these languages to simplify over time.

Which of the following are necessary assumptions upon which the linguists' hypothesis depends? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: The cessation of phonetic simplification in the relocated coastal communities was not primarily caused by their adoption of the distinct, phonetically stable languages of pre-existing inland populations.; The ambient noise generated by crashing ocean waves is significant enough to interfere with the accurate auditory perception of complex consonant clusters during everyday speech.

Cevap

The argument requires assuming both that the relocated communities did not simply adopt a new language, and that wave noise is actually loud enough to disrupt speech perception.
The argument relies on two distinct types of necessary assumptions. First, it requires a 'Defender' assumption to rule out an alternative cause for the second premise: if the relocated communities simply assimilated and adopted the stable languages of the inland populations, the sudden absence of wave noise would not be the actual reason their phonetic simplification stopped. Second, it requires a 'Supporter' assumption to validate the proposed mechanism: for wave noise to 'inherently degrade' oral transmission, it must be loud enough to actually interfere with human auditory perception. Negating either of these statements completely severs the logical link between the premises and the hypothesis.

Adım Adım Çözüm

1
Analyze the causal argument structure.
Premises: Wave noise correlates with phonetic simplification; removing wave noise (moving inland) correlates with the cessation of simplification. Conclusion: Wave noise causes simplification by degrading oral transmission.
Identifying the proposed causal mechanism and the supporting evidence is the critical first step in finding structural gaps.
2
Identify potential gaps in the causal reasoning.
The argument assumes the mechanism is physically viable (the noise is loud enough) and rules out alternative reasons for the historical change (e.g., they stopped simplifying because they assimilated and learned a completely different, stable language).
Necessary causal assumptions generally either bridge a gap in the mechanism (Supporter) or proactively rule out alternative explanations/causes (Defender).
3
Apply the Negation Technique to verify necessary assumptions.
If the relocated communities DID primarily adopt established inland languages, the cessation of simplification wasn't due to the absence of waves. If wave noise is NOT loud enough to interfere with perception, the mechanism is impossible. Both negate the hypothesis.
The Negation Technique definitively proves an assumption is logically required for the conclusion to hold.

Anahtar Kavram

Assumptions in Causal Arguments (Supporter and Defender Roles)
Soru 266Soru →

A recent analysis of dental calculus from the skeletal remains of the ancient Zuri people, who lived in the isolated, arid canyons of the Xylos region 3,000 years ago, revealed significant traces of a unique psychoactive compound. This compound is naturally found only in the leaves of the Tethyan shrub, a plant species strictly native to coastal marshlands located over 500 miles away. Based on this discovery, anthropologists conclude that the ancient Zuri must have engaged in long-distance trade with coastal populations.

Which of the following statements, if true, would most strengthen the anthropologists' conclusion? (Select all that apply)

Geçerli olan tümünü seçin

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Cevap: The climate of the canyon region 3,000 years ago was just as arid as it is today, making it impossible for the Tethyan shrub to have grown there.; The specific psychoactive compound found in the dental calculus is not synthesized by any other plant species known to have existed in or near the Xylos region.; Isotopic analysis of the Zuri skeletal remains indicates that these individuals lived their entire lives within the canyon region and never traveled to the coast.

Cevap

The statements that rule out local historical growth of the plant, eliminate alternative local plant sources, and confirm the Zuri did not travel to the coast themselves.
The anthropologists conclude that the presence of the compound means the Zuri engaged in long-distance trade. The correct answers strengthen this argument by ruling out alternate explanations. One correct answer rules out the possibility that the coastal plant grew locally in the ancient past. Another rules out the possibility that the Zuri traveled to the coast to harvest the plant themselves. The final correct answer rules out the possibility that the compound came from a different, locally available plant species. By eliminating these plausible alternatives, the trade hypothesis becomes significantly stronger.

Adım Adım Çözüm

1
Identify the main conclusion and the supporting premises of the argument.
Conclusion: The ancient Zuri engaged in long-distance trade. Premises: Zuri remains from an arid canyon have traces of a compound found only in a coastal shrub 500 miles away.
Deconstructing the argument is necessary to expose the logical gaps between the evidence and the conclusion.
2
Brainstorm potential alternative explanations (loopholes) that could explain the premises without the conclusion being true.
Alternative explanations include: the plant grew in the canyon 3,000 years ago, the Zuri traveled to the coast to get it themselves, or the compound came from a completely different local plant.
Identifying alternative explanations is the key to evaluating historical and causal arguments on the LSAT.
3
Evaluate the answer choices to find those that eliminate these alternative explanations.
Three options successfully defend the conclusion by ruling out local climate suitability, alternative local plants, and personal travel by the Zuri.
Ruling out alternate explanations (using Defender Assumptions) is one of the most effective ways to strengthen an argument's conclusion.

Anahtar Kavram

Strengthening historical arguments by ruling out alternative explanations
Soru 267Soru →

City transit official: To assess the public's satisfaction with the newly introduced Rapid Commute bus line, we surveyed commuters waiting at the line's busiest stops during the morning rush hour. Over 90 percent of the respondents indicated that the new bus line is highly convenient and significantly reduces their commute time. Clearly, the residents of this city overwhelmingly find the new Rapid Commute line to be a valuable and convenient addition to our transit system.

Which of the following most accurately describes a flaw in the transit official's reasoning?

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Cevap: It bases a broad generalization about the city's residents on a sample that is inherently biased toward those who already use and benefit from the service.

Cevap

The argument bases a broad generalization about the city's residents on a sample that is inherently biased toward those who already use and benefit from the service.
The argument's conclusion makes a sweeping claim about 'the residents of this city' based entirely on a survey of people who were already waiting at the bus stops of the new line. This is a classic example of an unrepresentative sample (selection bias). People who actively choose to wait for a bus are much more likely to find it convenient than the general public. Those who find it inconvenient likely took a different form of transportation and were entirely excluded from the survey.

Adım Adım Çözüm

1
Identify the main conclusion of the argument.
The conclusion is: 'Clearly, the residents of this city overwhelmingly find the new Rapid Commute line to be a valuable and convenient addition to our transit system.'
Locating the conclusion sets the scope of the argument, showing that the official is making a claim about ALL residents of the city.
2
Identify the premises provided to support this conclusion.
The premise is: Over 90 percent of commuters surveyed at the bus line's busiest stops during rush hour find the line convenient and time-saving.
Understanding the evidence reveals how the author attempts to justify the broad conclusion.
3
Evaluate the relationship between the premises and the conclusion to find the logical gap.
The evidence relies on a survey of people already waiting for the bus. People who do not find the bus convenient or useful are highly unlikely to be waiting at the bus stop.
This reveals a textbook sampling flaw (selection bias). The sample is completely unrepresentative of the broader group (all city residents) being discussed in the conclusion.
4
Select the option that best abstracts this specific vulnerability.
The correct option points out that the argument bases a generalization about a larger group on a biased, unrepresentative sample of users.
This perfectly matches the identified logical gap in the argument.

Anahtar Kavram

Identifying Unrepresentative Samples and Selection Bias
Soru 268Soru →

Company President: The union leaders argue that our factory workers deserve significantly better healthcare benefits because the company has experienced unprecedented growth over the last three fiscal years. However, this argument fundamentally misunderstands reality. Growth is strictly a biological process that involves cellular division and physical expansion over time. Because a manufacturing corporation is clearly not a living biological organism, it cannot possibly undergo growth. Therefore, the union's premise is completely unfounded.

Which one of the following most accurately describes a flaw in the company president's reasoning?

Cevabı ve açıklamayı göster

Cevap: It trades on the use of a single term in two entirely different senses.

Cevap

The correct answer is the option stating that the argument trades on the use of a single term in two entirely different senses.
The correct answer accurately identifies the equivocation flaw. The union leaders use the word 'growth' in a common economic sense (e.g., increased revenue, expansion of operations), while the company president deliberately shifts the meaning to a strictly biological sense (cellular division) in order to dismiss the union's claim. Using one word to mean two fundamentally different things in the same argument is a classic logical fallacy known as equivocation.

Adım Adım Çözüm

1
Identify the author's main conclusion.
The conclusion is that the union's premise about the company experiencing growth is completely unfounded.
Understanding the conclusion helps pinpoint what the author is ultimately trying to prove.
2
Identify the evidence used to support the conclusion.
The author defines growth strictly as a biological process of cellular division, and notes that a corporation is not a biological organism.
Isolating the premises reveals how the author attempts to logically justify the conclusion.
3
Evaluate the relationship between the premises and the conclusion to find the logical gap.
The author intentionally shifts the definition of 'growth'. The union meant economic growth, but the author attacks the claim using biological growth.
Recognizing this shift in meaning exposes the equivocation fallacy at the heart of the argument.

Anahtar Kavram

Equivocation Fallacy
Soru 269Soru →

A ten-year ecological study of the Silver-tufted Macaque found that troops living in regions with high concentrations of naturally occurring lithium in the water supply exhibit significantly lower rates of aggressive intra-troop conflicts compared to troops living in lithium-poor regions. Based on this observation, the researchers concluded that the consumption of lithium-rich water reduces aggressive behavior among these macaques.

Which one of the following is an assumption on which the researchers' argument depends?

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Cevap: Silver-tufted Macaque troops do not establish territories in lithium-rich regions because they already possess an inherently lower propensity for aggression.

Cevap

The option stating that Silver-tufted Macaque troops do not establish territories in lithium-rich regions because they already possess an inherently lower propensity for aggression.
The argument observes a correlation between lithium-rich water and low aggression, then concludes that the lithium causes the lower aggression. For this causal claim to be valid, the author must implicitly assume that reverse causation is not responsible for the correlation. The correct option states exactly this: it assumes that the macaques did not simply settle in the lithium-rich regions as a result of already being inherently peaceful. If we apply the Negation Technique and assume they DID settle there because they were already peaceful, the researchers' conclusion that lithium causes the peace is completely destroyed.

Adım Adım Çözüm

1
Identify the premises and the conclusion of the argument.
Premise: Macaques in lithium-rich areas have less intra-troop aggression than those in lithium-poor areas (a correlation). Conclusion: Consuming lithium-rich water causes the reduction in aggressive behavior.
Separating facts from the author's claim is the first step in finding the logical gap.
2
Identify the logical gap (the jump from correlation to causation).
The author assumes that because lithium and low aggression occur together, the lithium must be the cause of the low aggression.
In causal arguments, correlations are vulnerable to alternate causes and reverse causation.
3
Formulate a necessary assumption that defends the causal claim.
The argument must assume that the low aggression did not cause the macaques to live in the lithium-rich areas (ruling out reverse causation).
If reverse causation were true, the conclusion that lithium causes low aggression would fall apart.
4
Apply the Negation Technique to the correct option to verify.
Negating the correct option yields: 'Macaques DO establish territories in lithium-rich regions because they already possess lower aggression.' This destroys the argument's conclusion.
A necessary assumption must destroy the argument when proven false.

Anahtar Kavram

Ruling out reverse causation in causal arguments
Tahmini Süre:1m 30s
Soru 270Soru →

Historian: In the twelfth century, King Athelstan issued a decree requiring all regional lords to pay their annual tribute in grain rather than in silver coin. Historical records indicate that within five years of this decree, the royal treasury's silver reserves had dropped by more than half. It is clear that the implementation of Athelstan's decree was responsible for the severe depletion of the royal silver reserves.

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

Geçerli olan tümünü seçin

Cevabı ve açıklamayı göster

Cevap: At least some regional lords complied with King Athelstan's decree by ceasing to pay their tribute in silver coin.; The depletion of the silver reserves was not primarily due to a massive increase in the treasury's silver expenditures during those five years.

Cevap

The correct answers state that some lords complied with the decree, and that a massive increase in expenditures was not the primary cause of the depletion.
The correct choices identify the unstated premises required for the causal relationship to hold. First, for the decree to have an effect, it must have been obeyed to some degree (establishing the mechanism). Second, for the decree to be 'responsible' for the severe drop, other major potential causes—such as a sudden, massive increase in royal spending—must be ruled out. If either of these statements is logically negated, the historian's causal conclusion falls apart.

Adım Adım Çözüm

1
Identify the conclusion and the premises.
Conclusion: The decree caused the depletion of silver reserves. Premises: The decree required grain instead of silver; silver reserves dropped by more than half within five years.
Deconstructing the argument is the first step in evaluating assumptions.
2
Analyze the causal relationship.
The author observes a correlation in time (decree followed by depletion) and concludes causation.
Causal arguments inherently rely on specific assumptions regarding alternate causes and the mechanics of the cause itself.
3
Apply the Negation Test to candidate answers.
Negating the correct options destroys the argument: if no lords complied, the decree couldn't be the cause. If a massive increase in spending was the primary cause, the decree wasn't.
The Negation Test is the definitive method for confirming a necessary assumption.

Anahtar Kavram

Necessary Assumption in Causal Reasoning
Tahmini Süre:1m 30s
Soru 271Soru →

Transit subsidy advocates argue that implementing their proposed fare-reduction initiative is the only viable method for mitigating our city's severe traffic congestion. Their argument rests on the premise that unless a municipal policy substantially reduces the direct financial burden of public transportation on commuters, those commuters will invariably continue to rely on their private vehicles. This reasoning, however, is fundamentally flawed. Consider the neighboring municipality of Oakhaven: last year, Oakhaven actually doubled its public transit fares, but by simultaneously implementing a massive overhaul of train frequency and route reliability, the city experienced a thirty percent decrease in private vehicle usage and a corresponding drop in traffic congestion.

The statement concerning the neighboring municipality of Oakhaven plays which one of the following roles in the argument?

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Cevap: It presents a specific historical case demonstrating that a condition posited by the advocates as necessary for commuters to abandon private vehicles is not actually required.

Cevap

The correct answer is the option stating that it presents a specific historical case demonstrating that a condition posited by the advocates as necessary for commuters to abandon private vehicles is not actually required.
The transit advocates' argument relies on a strict conditional relationship: they claim that reducing the financial burden is a necessary condition for commuters to stop driving (indicated by the word 'unless'). The author introduces the city of Oakhaven as a specific counterexample where this supposedly necessary condition was absent (fares actually doubled), yet the desired outcome still occurred (commuters abandoned private vehicles). Therefore, the role of the Oakhaven statement is to present a specific historical case that proves the advocates' necessary condition is not actually required.

Adım Adım Çözüm

1
Analyze the transit subsidy advocates' core claim.
They claim that 'unless' financial burden is reduced, commuters will not abandon vehicles.
Identifying the logical structure of the opposing view is necessary. The word 'unless' establishes a necessary condition: Reduced Cost is necessary for Commuters Abandoning Vehicles.
2
Identify the author's main conclusion.
The author concludes that the advocates' reasoning is 'fundamentally flawed.'
This establishes the overarching purpose of the argument: to refute the advocates' claim.
3
Analyze the nature and function of the Oakhaven statement.
Oakhaven is a specific example where fares doubled (cost was NOT reduced) but private vehicle usage decreased anyway (because of better reliability).
This maps the premise to its structural role. It is empirical evidence presented to attack the advocates' necessary condition.
4
Synthesize the findings to define the role of the counterexample.
The Oakhaven example functions as a counterexample that falsifies the advocates' universal claim by showing the desired outcome can occur without the condition they claimed was strictly necessary.
This directly matches the phrasing of the correct answer, confirming how the specific instance dismantles the necessary condition.

Anahtar Kavram

Identifying the role of a counterexample in refuting a conditional (necessary/sufficient) claim.
Soru 272Soru →

Art Historian: The recently discovered portrait *Lady in Blue* was painted by either Verrocchio or one of his apprentices. The painting utilizes a unique lapis lazuli pigment that was prohibitively expensive during the 1470s. Guild records show that only Verrocchio's primary workshop, not the satellite studios run by his apprentices, purchased this specific pigment during that decade. Therefore, the *Lady in Blue* must be the work of Verrocchio himself. Thus, the current owners of the painting should have it insured for a value commensurate with a verified Verrocchio masterwork.

Which one of the following most accurately describes the role played in the art historian's argument by the claim that the *Lady in Blue* must be the work of Verrocchio himself?

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Cevap: It is an intermediate conclusion that is supported by the evidence regarding pigment purchases and that in turn supports the argument's final recommendation regarding insurance.

Cevap

The statement functions as an intermediate (or subsidiary) conclusion. It is logically supported by the premises about the lapis lazuli pigment and the guild records, and it simultaneously serves to support the argument's final conclusion regarding insurance.
The correct answer accurately identifies the target statement as an intermediate conclusion. It receives logical support from the preceding premises regarding the identity of the painter, the type of pigment used, and the guild records. In turn, it provides the necessary logical foundation for the argument's final recommendation—that the painting should be insured as a Verrocchio masterwork.

Adım Adım Çözüm

1
Identify the main conclusion of the argument.
The final sentence, 'Thus, the current owners of the painting should have it insured for a value commensurate with a verified Verrocchio masterwork,' is the main conclusion.
This is the ultimate recommendation the art historian is attempting to prove, and it receives support from the rest of the text while supporting nothing else.
2
Analyze the structural role of the target statement.
The target statement, 'the Lady in Blue must be the work of Verrocchio himself,' is introduced by the indicator word 'Therefore', signaling it is a conclusion.
Structural indicators help map the logical flow, but the precise type of conclusion must be determined by its relationship to the rest of the argument.
3
Determine the relationship between the target statement, the premises, and the main conclusion.
The target statement is proven by the first three sentences (the premises about the expensive pigment and guild purchases). It is then used as a stepping stone to prove the final sentence (the insurance recommendation).
A statement that is supported by premises and in turn acts as a premise to support the main conclusion is classified as an intermediate conclusion.

Anahtar Kavram

Evaluating Intermediate Conclusions
Soru 273Soru →

Philosopher: Evaluating a literary work by examining the moral character of its author is as absurd as evaluating a mathematical proof by examining the moral character of the mathematician who derived it. A mathematical proof's validity relies entirely on its internal logical coherence, which is independent of the mathematician's personal virtues. Therefore, the aesthetic merit of a literary work must similarly be assessed independently of the author's personal character.

Which one of the following most accurately describes a flaw in the philosopher's argument?

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Cevap: It overlooks a potentially relevant difference between the criteria for mathematical validity and the criteria for literary merit.

Cevap

The correct answer is the option stating that the argument overlooks a potentially relevant difference between the criteria for mathematical validity and the criteria for literary merit.
The correct answer accurately identifies the classic weakness of an argument by analogy: the presence of a relevant disanalogy. The philosopher assumes that because the creator's morality is irrelevant in math, it must be irrelevant in literature. However, mathematical proofs are entirely abstract and logical, whereas literary works frequently deal with human experiences, emotions, and moral themes. Because the nature of the two fields is fundamentally different, comparing them to prove a point about moral character is a flawed analogy.

Adım Adım Çözüm

1
Identify the argument's core structure and main conclusion.
The main conclusion is that the aesthetic merit of a literary work must be assessed independently of the author's personal character.
Finding the conclusion helps determine what the premises are trying to prove.
2
Identify the method of reasoning used in the premises.
The philosopher uses an argument by analogy, comparing the evaluation of literary works to the evaluation of mathematical proofs.
Understanding how the conclusion is supported is necessary to evaluate the argument's validity.
3
Evaluate the strength of the analogy to find the logical flaw.
The analogy is weak because mathematics is purely logical and abstract, whereas literature often explores human morality and ethics. Therefore, the author's moral character might be relevant to literature in a way it is not to mathematics.
Arguments by analogy are most vulnerable when there is a significant, relevant difference (disanalogy) between the two things being compared.

Anahtar Kavram

Identifying flaws in arguments by analogy (False Analogy)
Soru 274Soru →

Under the revised corporate governance code, a board of directors can legally dismiss a chief executive officer only if the board achieves a supermajority vote. Furthermore, a supermajority vote is possible only when at least one independent director concurs with the board's executive directors. According to a recent audit, most companies in the Capstone Investment portfolio have boards consisting entirely of executive directors. However, any company in the Capstone Investment portfolio that has restated its quarterly earnings this year has legally dismissed its chief executive officer.

Which of the following logically follows from the information above?

Cevabı ve açıklamayı göster

Cevap: Most companies in the Capstone Investment portfolio have not restated their quarterly earnings this year.

Cevap

Most companies in the Capstone Investment portfolio have not restated their quarterly earnings this year.
The correct answer accurately combines the stimulus's formal logic chain with its central quantifier. The text establishes that restating earnings requires dismissing a CEO, and dismissing a CEO requires an independent director on the board. Therefore, any company that restates earnings must have an independent director (Restating Earnings -> Independent Director). Because we are told that 'most' Capstone Investment companies lack independent directors (their boards are 'entirely' executive), we can securely apply the contrapositive: most of these companies lack a necessary condition for restating earnings, and therefore, most have not restated their earnings.

Adım Adım Çözüm

1
Map the conditional relationships provided in the first two sentences.
Dismissing a CEO requires a supermajority (Dismiss CEO -> Supermajority). A supermajority requires an independent director (Supermajority -> Independent Director).
Establishing the formal logic chain allows us to identify necessary conditions. Transitivity means: Dismiss CEO -> Independent Director.
2
Map the conditional relationship in the final sentence.
Restating earnings requires dismissing the CEO (Restate Earnings -> Dismiss CEO).
Connecting this to our previous chain gives us the full logical sequence: Restate Earnings -> Dismiss CEO -> Independent Director.
3
Apply the quantifier provided in the third sentence to the full conditional chain.
Most Capstone companies have boards entirely consisting of executive directors, meaning they lack an independent director. By contrapositive (~Independent Director -> ~Dismiss CEO -> ~Restate Earnings), most Capstone companies cannot have restated their earnings.
If a necessary condition (Independent Director) is missing for the majority of a group, then the sufficient conditions (Dismissing CEO, Restating Earnings) must also be absent for the majority of that group.

Anahtar Kavram

Chaining Conditional Statements with Quantifiers
Soru 275Soru →

Under the revised 2026 Bioethics Commission guidelines, a cognitive enhancement implant can be approved for general public distribution only if the device has been demonstrated to have zero risk of inducing memory degradation, and it either significantly improves executive function or radically accelerates neural plasticity.

Which one of the following logically follows from the guidelines above?

Cevabı ve açıklamayı göster

Cevap: If a cognitive enhancement implant carries any risk of inducing memory degradation, or if it neither significantly improves executive function nor radically accelerates neural plasticity, it cannot be approved for general public distribution.

Cevap

The correct answer states that if an implant carries any risk of inducing memory degradation, or if it neither improves executive function nor accelerates neural plasticity, it cannot be approved.
The stimulus establishes a complex conditional relationship: Approval -> Zero Risk AND (Executive Function OR Neural Plasticity). To find what logically follows, we must find the contrapositive. According to formal logic and De Morgan's laws, we reverse the terms and negate them, flipping 'AND' to 'OR' and 'OR' to 'AND'. The negation of 'Zero Risk' is 'any risk'. The negation of the 'AND' is an 'OR'. The negation of '(Executive Function OR Neural Plasticity)' is 'neither Executive Function nor Neural Plasticity'. Putting this together creates the correct sufficient condition: 'any risk OR (neither Executive Function nor Neural Plasticity)'. This triggers the negated outcome: 'cannot be approved'. The correct option perfectly mirrors this structure.

Adım Adım Çözüm

1
Identify the sufficient and necessary conditions in the stimulus.
Sufficient (A): Approved for distribution. Necessary: Zero risk of memory degradation (Z) AND [Improves executive function (E) OR Accelerates neural plasticity (N)].
The phrase 'only if' introduces necessary conditions. Everything preceding 'only if' is the sufficient condition.
2
Symbolize the formal logic relationship.
A -> Z AND (E OR N).
Abstracting the text into logic symbols helps isolate the structure needed to form the contrapositive.
3
Form the contrapositive by negating both sides and reversing the arrow.
NOT [Z AND (E OR N)] -> NOT A.
The contrapositive is the only definitively true deduction that can be made from a universal conditional statement.
4
Apply De Morgan's laws to simplify the negated compound necessary condition.
The negation of 'Z AND (E OR N)' becomes 'NOT Z OR NOT (E OR N)'. Further applying De Morgan's to the inner condition yields 'NOT Z OR (NOT E AND NOT N)'.
De Morgan's laws dictate that when negating a compound statement, 'AND' changes to 'OR', and 'OR' changes to 'AND'.
5
Translate the simplified logical contrapositive back into English.
If an implant does not have zero risk (has ANY risk), OR if it lacks both benefits (NEITHER significantly improves E NOR radically accelerates N), then it cannot be approved (NOT A).
This translation matches the correct answer choice perfectly.

Anahtar Kavram

Forming complex contrapositives using De Morgan's laws
Soru 276Soru →

Match each excerpt from the newly proposed clinical bioethics regulatory framework (left) with its logically equivalent contrapositive statement (right).

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

A therapy qualifies for expedited bioethics review only if it targets a terminal condition and has no viable alternatives.
Unless an applicant demonstrates both a compelling medical need and an absence of financial coercion, their participation in the clinical trial will be denied.
Implementation of the neural biofeedback mechanism requires that the software either undergoes independent auditing or is developed internally by the core research team.
Publishing the trial data prematurely is sufficient to both invalidate the patent application and permanently disqualify the researchers from future grants.

Eşleşmeler

Cevabı ve açıklamayı göster

Cevap

The correct mapping identifies the formal contrapositive of each conditional statement, properly applying De Morgan's Laws to compound conditions and accurately translating complex conditional indicators such as 'unless', 'requires', and 'only if'.
Each correctly paired item accurately translates the formal logic of the original natural language statement, identifies the sufficient and necessary conditions, reverses their order, and negates both sides. Where compound statements are involved, De Morgan's Laws are applied flawlessly to swap conjunctions ('and') with disjunctions ('or').

Adım Adım Çözüm

1
Analyze the 'only if' statement regarding expedited bioethics review.
Matches with the statement concluding that the therapy is ineligible.
'Only if' introduces necessary conditions (Terminal AND No Alternatives). Negating and reversing via De Morgan's Law results in 'Not Terminal OR Has Alternatives -> Ineligible'.
2
Analyze the 'unless' statement regarding clinical trial participation.
Matches with the statement beginning 'Any applicant whose participation... is permitted'.
'Unless X, Y' means 'If Not X, Y'. Here, 'If Not (Need AND Absence of Coercion) -> Denied'. The contrapositive is 'If Not Denied (Permitted) -> Need AND Absence of Coercion'.
3
Analyze the 'requires' statement regarding the biofeedback mechanism.
Matches with the statement beginning 'Whenever the software lacks independent auditing and has not been developed internally'.
'Requires' introduces a necessary compound condition (Auditing OR Internal). Reversing and negating flips OR to AND: 'NOT Auditing AND NOT Internal -> NOT Implemented'.
4
Analyze the 'sufficient' statement regarding premature publication.
Matches with the statement beginning 'If the researchers are not permanently disqualified... or the patent... is not invalidated'.
'Sufficient' introduces the sufficient condition. Premature -> (Invalidate AND Disqualify). Reversing and negating flips AND to OR: '(NOT Disqualify OR NOT Invalidate) -> NOT Premature'.

Anahtar Kavram

Forming contrapositives of compound conditional statements using De Morgan's Laws.
Soru 277Soru →

The newly constructed Greenfield Office Building is the most energy-efficient commercial building in the state, utilizing 40 percent less energy overall than the industry average. Therefore, the HVAC (heating, ventilation, and air conditioning) system installed in the Greenfield Office Building must use significantly less energy than the industry average for HVAC systems.

The reasoning in the argument is flawed in that the argument...

Cevabı ve açıklamayı göster

Cevap: presumes, without providing justification, that what is true of a whole must also be true of its constituent parts

Cevap

The argument incorrectly assumes that because the entire building is highly energy-efficient, a specific component of that building (the HVAC system) must also be highly energy-efficient.
The correct answer accurately diagnoses a classic Fallacy of Division. The author establishes that the building as a single, collective entity possesses a specific trait (utilizing far less energy than average). The author then illegitimately assigns that exact same trait to one specific component of the building. In reality, a whole can have a property that its individual parts lack.

Adım Adım Çözüm

1
Analyze the premise provided in the stimulus.
The entire Greenfield Office Building uses 40 percent less energy than the industry average.
Identifying the baseline fact establishes what we know about the 'whole'.
2
Analyze the argument's conclusion.
The building's HVAC system must use significantly less energy than an average HVAC system.
Identifying the conclusion shows what the author believes can be logically derived from the premise.
3
Identify the logical gap between the premise and the conclusion.
The argument moves directly from a characteristic of the entire building (the whole) to a characteristic of the HVAC system (a part).
The overall efficiency of the building could easily be achieved by other highly efficient parts (like exceptional insulation or LED lighting), even if the HVAC system itself is average or inefficient.

Anahtar Kavram

Fallacy of Division (assuming a part has a property simply because the whole has that property)
Tahmini Süre:1m 15s
Soru 278Soru →

City Council Member: We should not fund the proposed early-childhood cognitive development program. Dr. Vance, a highly respected and globally recognized structural engineer who has led several of our city's largest infrastructure projects, recently stated in an interview that such early-intervention educational programs do not yield long-term neurological benefits. Given Dr. Vance's distinguished record of analytical excellence, we must conclude that this program is a waste of taxpayer money.

The reasoning in the city council member's argument is most vulnerable to criticism on the grounds that it does which of the following?

Cevabı ve açıklamayı göster

Cevap: relies on the judgment of an authority whose area of expertise is not relevant to the issue at hand

Cevap

The correct answer is the option stating that the argument relies on the judgment of an authority whose area of expertise is not relevant to the issue at hand.
The argument commits an 'Appeal to Unqualified Authority' fallacy. The author asks the reader to accept a claim about early-childhood neurological development based entirely on the opinion of a structural engineer. While the engineer may be an expert in infrastructure, this expertise is wholly irrelevant to the biological and psychological sciences required to evaluate a cognitive development program.

Adım Adım Çözüm

1
Identify the main conclusion of the argument.
The conclusion is that the early-childhood cognitive development program is a waste of taxpayer money.
Understanding the conclusion establishes what the author is trying to prove.
2
Identify the primary premise used to support the conclusion.
The sole piece of evidence is the testimony of Dr. Vance, who claims the program will not yield long-term neurological benefits.
We must evaluate how the premise logically connects to the conclusion.
3
Evaluate the validity of the premise as it relates to the conclusion.
Dr. Vance is cited as a 'structural engineer' with a 'distinguished record of analytical excellence.' However, structural engineering has no connection to neurological health or cognitive development.
Identifying the mismatch between the expert's field and the subject of the claim reveals the logical flaw.
4
Match the identified flaw with the correct abstract description in the answer choices.
The flaw is an illegitimate appeal to authority, which matches the option describing reliance on an expert whose expertise is irrelevant.
LSAT flaw questions require translating specific argumentative errors into abstract logical descriptions.

Anahtar Kavram

Appeal to Unqualified Authority
Tahmini Süre:1m 30s
Soru 279Soru →

Max Sterling, the world-renowned professional tennis champion, recently stated in an interview that taking daily high doses of Vitamin C prevents all common viruses. Since Max Sterling is clearly an elite physical specimen whose body is in peak condition, his claim about the efficacy of high-dose Vitamin C must be correct.

The argument is most vulnerable to criticism on the grounds that it:

Cevabı ve açıklamayı göster

Cevap: bases a conclusion on the claims of an authority whose expertise is not relevant to the subject at issue

Cevap

The argument bases a conclusion on the claims of an authority whose expertise is not relevant to the subject at issue.
The argument commits an illegitimate appeal to authority. It concludes that a scientific, medical claim about viruses is true simply because it was asserted by an elite professional tennis player. While Max Sterling is an expert in his sport, athletic success does not provide one with specialized medical expertise. Therefore, his authority is completely irrelevant to the subject matter at hand.

Adım Adım Çözüm

1
Identify the conclusion of the argument.
The conclusion is that Max Sterling's claim about high-dose Vitamin C preventing viruses must be correct.
Locating the main conclusion is the necessary first step to evaluate the logical structure of the argument.
2
Identify the premises provided to support the conclusion.
The sole premise is that Max Sterling is a world-renowned tennis champion and an elite physical specimen in peak condition.
Understanding the evidence reveals how the author attempts to prove the conclusion.
3
Evaluate the logical gap between the premise and the conclusion.
The argument assumes that athletic prowess and physical fitness grant a person authoritative knowledge on virology and immunology.
This highlights the specific flaw: relying on an expert in one field (sports) to validate a claim in a completely unrelated field (medicine).

Anahtar Kavram

Appeal to Unqualified Authority
Tahmini Süre:1m 0s
Soru 280Soru →

Urban planners generally agree that any city that invests heavily in its public transportation infrastructure will inevitably experience a significant decrease in traffic congestion on its major roadways. Over the past two years, the city of Metroville has been making unprecedented financial investments to expand its light rail and citywide bus networks. Therefore, residents can be confident that the overall air quality in Metroville will soon improve.

Which one of the following, if assumed, enables the argument's conclusion to be properly drawn?

Cevabı ve açıklamayı göster

Cevap: Any city that experiences a significant decrease in traffic congestion on its major roadways will also see an improvement in its overall air quality.

Cevap

The correct answer is the statement bridging the gap by showing that a decrease in traffic congestion guarantees an improvement in air quality.
The argument concludes that Metroville's air quality will improve based entirely on the premise that it is investing in public transportation, which reliably decreases traffic congestion. There is a logical gap between the concept of 'decreasing traffic congestion' and the concept of 'improving air quality'. The correct choice successfully bridges this gap by establishing that a decrease in traffic congestion is strictly sufficient to guarantee an improvement in air quality. When added to the premises, this ensures the conclusion is a 100% valid deduction.

Adım Adım Çözüm

1
Identify the conclusion of the argument.
Conclusion: The overall air quality in Metroville will soon improve.
This is the final claim the author is trying to prove, indicated by the word 'Therefore'.
2
Identify the premises supporting the conclusion.
Premise 1: Investing in public transit -> Decrease in traffic congestion. Premise 2: Metroville is investing in public transit.
These are the stated facts used to build the argument.
3
Find the logical gap between the premises and the conclusion.
The premises prove that Metroville will have a decrease in traffic congestion. However, the conclusion jumps to claiming an improvement in air quality.
A sufficient assumption must perfectly bridge the new term in the conclusion (air quality) back to the established premises (traffic congestion).
4
Formulate the necessary bridge.
We need a statement that says: If a decrease in traffic congestion occurs, then air quality will improve.
Adding this statement guarantees the conclusion is 100% true based on formal logic.

Anahtar Kavram

Sufficient Assumptions (Formal Logic Bridging)
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