Tüm alıştırma soruları

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Soru 61Soru →

Each passage below presents an academic argument that depends on an unstated foundational premise. Match each numbered argument with the implicit assumption on which its conclusion strictly depends.

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Öğeler

Archaeogeneticist: DNA extracted from Bronze Age human remains reveals ancestral strains of the bacterium Yersinia pestis that lacked the ymt gene, which enables flea-borne vector transmission. Because flea-borne transmission is necessary for the rapid transmission rates characteristic of historical bubonic pandemics, these prehistoric bacterial strains could not have caused widespread outbreaks across dispersed geographic settlements.
Financial Econometrician: High-frequency algorithmic trading firms deploy line-of-sight microwave relay networks between electronic exchanges because microwaves propagate roughly 30 percent faster through air than laser pulses do through fiber-optic lines. Consequently, algorithmic firms that rely exclusively on fiber-optic cables will be completely unable to execute profitable statistical arbitrage orders.
Atmospheric Chemist: Proposed solar geoengineering programs plan to inject sulfur dioxide into the stratosphere to reflect solar radiation; however, high concentrations of sulfate aerosols catalyze ozone-destroying reactions on the surfaces of polar stratospheric clouds. Therefore, implementing stratospheric aerosol injection on a planetary scale will inevitably produce severe thinning of the global ozone shield.
Cognitive Ethologist: Bottlenose dolphins emit individual-specific signature whistles. When acoustic playback experiments broadcast synthetic copies of these signature whistles, dolphins respond preferentially to the synthesized calls of maternal relatives rather than familiar non-kin. Thus, dolphin kin recognition is mediated primarily by the frequency contour of signature whistles rather than by subtle variations in individualized vocal timbre.

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Cevap

Argument 1 matches the assumption regarding non-vector human transmission mechanisms; Argument 2 matches the assumption regarding the nonexistence of viable long-horizon arbitrage strategies; Argument 3 matches the assumption regarding ozone catalysis outside polar stratospheric cloud conditions; Argument 4 matches the assumption regarding the acoustic elimination of vocal timbre in synthesized playbacks.
Each correctly matched pair identifies a foundational unstated bridge or defender assumption. In every case, applying the Negation Test reveals that denying the matched premise destroys the inferential link between the stated premises and the author's specific conclusion.

Adım Adım Çözüm

1
Analyze Argument 1 (Bronze Age Yersinia pestis)
Identified the gap between lacking a flea-borne transmission gene and the inability to spread between distant settlements.
The author presumes that no other transmission pathway (such as human pastoral migration) could have facilitated distant spread without the flea vector.
2
Analyze Argument 2 (Microwave telecommunications)
Identified the extreme claim that lack of microwave transmission precludes ANY profitable statistical arbitrage.
The conclusion requires that no profitable statistical arbitrage exists at latency horizons where microwave speed advantages are irrelevant.
3
Analyze Argument 3 (Stratospheric geoengineering)
Identified the scope jump from polar stratospheric cloud reactions to severe global ozone depletion.
The author must assume that sulfate-induced depletion is not strictly limited to polar cloud environments in a manner that spares the broader global ozone layer.
4
Analyze Argument 4 (Dolphin vocal recognition)
Identified the controlled variable assumption in the acoustic playback experiment.
To attribute dolphin recognition to frequency contours rather than vocal timbre, the synthesized playback must not have retained the vocal timbre of the original vocalizers.

Anahtar Kavram

Necessary Assumption: Identifying unstated premises required by an argument's logic via the Negation Test.
Soru 62Soru →

The argument below is presented by a scholar of legal ethics. For each statement excerpted from the passage, identify its exact logical role in the author's reasoning.

Scholar of legal ethics: While some critics contend that the rigid application of attorney-client privilege in corporate fraud cases harms the public interest, this perspective is fundamentally flawed. Maintaining strict privilege actually serves the broader public interest by preventing future legal infractions. Without an absolute guarantee of confidentiality, corporate executives would routinely withhold potentially incriminating information from their legal counsel. If executives withhold such information, attorneys are severely handicapped in their ability to proactively guide corporations toward lawful compliance.

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Öğeler

"...some critics contend that the rigid application of attorney-client privilege in corporate fraud cases harms the public interest..."
"Maintaining strict privilege actually serves the broader public interest by preventing future legal infractions."
"Without an absolute guarantee of confidentiality, corporate executives would routinely withhold potentially incriminating information from their legal counsel."
"...attorneys are severely handicapped in their ability to proactively guide corporations toward lawful compliance."

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The statements map logically as follows: The critics' argument is the viewpoint to be discredited; the claim that privilege serves the public interest is the main conclusion; executives withholding information is a basic premise; and attorneys being handicapped is the intermediate conclusion.
In this argument, the author introduces an opposing view ('critics contend...') in order to refute it. The author's main conclusion is that 'Maintaining strict privilege actually serves the broader public interest.' To support this, the author offers a chain of reasoning: without confidentiality, executives withhold info (basic premise); therefore, attorneys are handicapped in guiding compliance (intermediate conclusion). This intermediate conclusion ultimately shows why the main conclusion is true.

Adım Adım Çözüm

1
Analyze the passage to identify the main conclusion and the author's primary stance.
The author explicitly rejects the critics' view and asserts that maintaining strict privilege serves the broader public interest. This is the main conclusion.
Identifying the main conclusion anchors the structural analysis of the rest of the argument.
2
Determine the role of the first excerpt regarding the critics' argument.
It represents an opposing viewpoint that the ethicist introduces solely to reject it as 'fundamentally flawed'.
Understanding what the author is arguing against clarifies the purpose of the surrounding context.
3
Analyze the logical relationship between the final two sentences.
The statement about executives withholding information acts as a condition that triggers the subsequent claim: attorneys would be handicapped.
Recognizing the causal link identifies which statement is the foundational premise and which is the supported sub-conclusion.
4
Determine the structural role of the claim that attorneys would be handicapped.
Because it is supported by a premise but in turn supports the main conclusion (that privilege serves the public interest by preventing infractions), it functions as an intermediate conclusion.
A claim that is both a conclusion of one premise and a premise for another is an intermediate conclusion.

Anahtar Kavram

Determining Statement Roles in complex arguments by tracking structural indicators and logical dependencies.
Soru 63Soru →

An independent investigative news syndicate recently made several contentious editorial determinations regarding pending investigative reports. Match each editorial determination to the general journalistic principle that most directly justifies it:

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Öğeler

The editorial board declined to publish leaked internal correspondence alleging corporate accounting fraud until independent financial audits verified the discrepancies, despite competing news organizations rushing to report the leaks.
The editorial board published confidential medical records showing a sitting prime minister suffered severe cognitive impairment while issuing executive defense orders, over objections from the leader's private physician.
The editorial board reassigned a senior energy reporter from covering a proposed renewable power subsidy bill because the reporter's spouse held substantial stock options in a prospective grant recipient.

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The leaked corporate fraud decision matches the principle requiring independent corroboration for leaked allegations; the cognitive impairment disclosure matches the principle permitting privacy disclosure only when official duty execution is affected; and the reporter reassignment matches the principle mandating recusal when immediate family financial interests create a policy stake.
Each scenario presents a specific factual trigger that perfectly meets the sufficient conditions of its corresponding normative principle: independent verification for leaked materials, duty impairment for privacy disclosure, and spousal financial assets for conflict recusal.

Adım Adım Çözüm

1
Analyze the first scenario regarding unverified leaked correspondence
The action involves delaying publication of leaked fraud allegations until independent auditing confirms the facts. This matches the rule stipulating that unverified leaked claims must be corroborated by documentary proof before publication.
Principle application requires bridging the specific evidentiary hurdle (auditing confirmation) to the general normative constraint (corroboration requirement).
2
Analyze the second scenario regarding the disclosure of executive health records
The action overrides medical privacy specifically because executive defense actions were taken while impaired. This matches the rule that privacy may be pierced only when an undisclosed condition directly impairs the execution of official duties.
The justification relies on the functional impact of the condition on governance responsibilities.
3
Analyze the third scenario regarding reporter reassignment
The action removes a reporter whose spouse owns stock in a company affected by pending legislation. This aligns with the rule requiring removal of staff when immediate family financial assets generate a personal stake in policy coverage.
The rule addresses conflicts of interest arising from immediate familial economic ties.

Anahtar Kavram

Principle Application and Justification
Soru 64Soru →

Match each argument with the fundamental unstated assumption required for its conclusion to be logically justified.

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Öğeler

Cognitive Scientist: Participants who completed intensive navigation training in virtual three-dimensional environments showed a significant increase in posterior hippocampal volume. Because this enlargement occurred only in subjects actively navigating the virtual mazes and not in control subjects who passively watched pre-recorded navigation videos, the neural growth must have been directly stimulated by the cognitive demands of active spatial decision-making rather than the visual immersion of the simulation.
Urban Economist: To curtail air pollution, city planners propose subsidizing electric cargo bicycles to replace diesel commercial delivery vans. However, replacing diesel vans with electric cargo bikes will fail to decrease aggregate urban particulate emissions, because cargo bikes possess a substantially lower freight capacity per vehicle, necessitating at least four cargo bikes to transport the cargo volume previously moved by a single diesel van.
Marine Ecologist: Deep-sea sediment cores demonstrate that benthic foraminifera shell density plummeted during a prehistoric warming epoch fifty-five million years ago. Because benthic foraminifera build their shells from dissolved carbonate ions, ocean acidification driven by massive atmospheric carbon release must have been the sole cause of this precipitous decline in shell calcification.

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Cevap

Argument 1 regarding virtual spatial navigation matches the assumption that manual motor activity did not independently drive hippocampal growth. Argument 2 regarding electric cargo bikes matches the assumption that four cargo bikes do not produce fewer total particulate emissions than one diesel van. Argument 3 regarding benthic foraminifera matches the assumption that elevated ocean temperatures did not independently impede shell calcification.
Each correct pairing links an argument to a premise-to-conclusion gap that is strictly essential. For the cognitive science argument, ruling out manual motor manipulation defends the causal attribution to spatial cognition. For the urban logistics argument, establishing that four electric cargo bikes do not emit less total particulate matter than one diesel van is required to justify why the substitution fails to decrease net pollution. For the marine ecology argument, ruling out direct thermal inhibition is necessary to uphold the claim that acidification was the sole causal factor.

Adım Adım Çözüm

1
Isolate the conclusion and premises for each argument to identify logical gaps.
Argument 1 concludes active spatial cognition caused neural growth by eliminating visual immersion; Argument 2 concludes fleet replacement will not reduce total particulate pollution due to higher vehicle counts; Argument 3 concludes ocean acidification was the sole cause of prehistoric shell density decline.
Necessary assumptions must bridge unstated gaps or defend conclusions against unaddressed alternative explanations.
2
Apply the Negation Test to candidate assumptions for each argument.
Negating the motor-activity assumption shows motor mechanics could explain hippocampal growth. Negating the cargo-bike emission assumption demonstrates aggregate emissions would actually fall. Negating the temperature assumption introduces an independent cause, destroying the 'sole cause' claim.
If the negation of a statement fatally undermines an argument's conclusion, that statement is strictly necessary to the argument.
3
Pair each argument with its corresponding necessary unstated assumption.
Each argument is uniquely matched to its requisite unstated defender or supporter assumption.
Establishes logically sound, non-trivial pairings across all three distinct reasoning structures.

Anahtar Kavram

Necessary Assumption identification via the Negation Test and alternative explanation defense
Tahmini Süre:2m 30s
Soru 65Soru →

Each excerpt in the first column exhibits a characteristic vulnerability in its logical reasoning. Match each flawed argumentative excerpt with the description that most accurately identifies its primary reasoning flaw:

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Öğeler

Hydrologist: To prevent saline intrusion into coastal freshwater wells, a municipal aquifer replenishment facility's injection pressure must continuously exceed hydrostatic barrier thresholds. Sensor logs confirm that the Seaside Basin facility maintained injection pressures exceeding these thresholds throughout the dry season. Therefore, the Seaside Basin facility must have successfully prevented saline intrusion during this period.
Linguist: Public statutes mandate that governmental notices be drafted in 'plain language' to avoid communicative ambiguity. Because plain language is unadorned and elementary, any notification incorporating specialized technical nomenclature violates this statutory mandate, even if every technical term is defined with complete and unambiguous precision.
Ecologist: Every individual invertebrate species inhabiting the Mariana Arc hydrothermal vents exhibits high tolerance to extreme temperature fluctuations. Because the Mariana Arc hydrothermal vent ecosystem consists entirely of these invertebrate populations and their physical habitat, the ecosystem as a whole must be similarly resilient against regional temperature changes.

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The hydrologist's argument matches the description of treating a necessary condition as sufficient; the linguist's argument matches the description of an equivocal shift in the meaning of a key term; and the ecologist's argument matches the description of improperly inferring that a collective system has a trait because its individual parts do.
Each argument corresponds to a classic structural flaw on the LSAT: the hydrologist confuses a necessary condition with a sufficient condition; the linguist shifts the meaning of 'plain language' from unambiguous communication to non-technical diction; and the ecologist commits a fallacy of composition by attributing an individual component trait to an entire systemic whole.

Adım Adım Çözüm

1
Analyze the structural relationship between premise and conclusion in the hydrologist's argument.
The hydrologist states that exceeding the pressure threshold is required ('must continuously exceed') to prevent intrusion. Exceeding the threshold satisfies a necessary condition, but the conclusion treats it as sufficient to guarantee the prevention of intrusion.
Identify conditional logic errors (mistaking necessary conditions for sufficient conditions).
2
Evaluate the usage of central terminology across the premises and conclusion in the linguist's argument.
The term 'plain language' is initially introduced in the context of preventing ambiguity, but is subsequently redefined as the absence of any technical vocabulary, creating an illegitimate semantic shift.
Identify equivocation and definitional shifts that undermine deductive validity.
3
Assess the compositional relationship between the entities in the ecologist's premises and conclusion.
The premise establishes a property of individual species ('each individual invertebrate species'), while the conclusion attributes that same property to the collective entity ('the ecosystem as a whole').
Identify compositional fallacies (part-to-whole / composition errors).

Anahtar Kavram

Flaw in the Reasoning: Structural Fallacies and Error Identification
Tahmini Süre:2m 30s
Soru 66Soru →

Each of the following arguments exhibits a distinct reasoning vulnerability. Match each flawed argument with the statement that most accurately describes its primary logical flaw.

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Öğeler

Journalist: Our magazine has an editorial obligation to publish material that serves the public interest. Because recent reader surveys demonstrate that the general public is intensely interested in the private romantic lives of celebrities, publishing our planned series of celebrity gossip articles directly fulfills our editorial obligation.
Museum Administrator: To eliminate our operating deficit, we must either double the general admission fee or cancel our public arts education program. Because doubling the admission fee would alienate our core visitors, we must cancel the education program.
Civil Advocate: The lead structural engineer presented comprehensive stress-test data indicating that the new municipal bridge is completely safe for heavy transit. However, because that engineer's firm will receive a sizable financial bonus if the bridge opens ahead of schedule, the bridge cannot be safe.
Policy Analyst: Dr. Vance, a Nobel laureate in theoretical condensed matter physics, recently argued that the city's proposed commercial property tax reform will inevitably trigger retail vacancies. Given Dr. Vance's extraordinary academic distinction, the city council should reject the proposed tax reform.

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Cevap

The journalist's argument matches the description of conflating curiosity with public welfare; the museum administrator's argument matches the assumption that only two exclusive courses of action exist; the civil advocate's argument matches rejecting a claim based on the speaker's financial motives; and the policy analyst's argument matches relying on an authority outside their field of expertise.
Each argument contains a hallmark logical fallacy that matches precisely one abstract description: shifting word definitions matches the equivocation description; presenting an exhaustive two-option scenario matches the false dilemma description; dismissing empirical data because of compensation bonuses matches the motive attack description; and using physics prestige to validate tax claims matches the unqualified authority description.

Adım Adım Çözüm

1
Isolate the conclusion and premises of each argument in the left column.
Identified four independent flawed arguments: semantic shift in the journalism argument, restricted alternatives in the museum argument, motive attack in the engineering argument, and out-of-field authority in the physics/tax argument.
Accurately identifying the reasoning gap between premise and conclusion is necessary to match each argument to its abstract description.
2
Map each argument's specific vulnerability to standard formal flaw archetypes.
The arguments represent equivocation (public interest), false dichotomy (two budget options), ad hominem/motive (bonus incentive), and appeal to unqualified authority (physicist on tax policy).
Abstract descriptions on the LSAT translate concrete argumentative defects into generalized logical principles.
3
Pair each argument with its exact corresponding abstract formulation.
All four pairs matched unequivocally with no overlap or ambiguity.
Ensures that every pair is uniquely and correctly aligned based on structural logic.

Anahtar Kavram

Flaw in the Reasoning: Identifying Fallacies and Structural Flaws (Equivocation, False Dilemma, Ad Hominem Motive Attack, and Inappropriate Authority)
Tahmini Süre:1m 30s
Soru 67Soru →

Review the provided text discussing nineteenth-century geological historiography:

'In examining the evolution of nineteenth-century geological thought, historiographers must account for how early researchers attempted to *arrest* the chaotic influx of newly discovered stratigraphical anomalies. Rather than embracing sudden catastrophic shifts, uniformitarians sought to *apprehend* the deep history of the Earth by extrapolating from the steady, observable processes of the present. Their theoretical models rejected any interpretive *license*, dismissing ad hoc supernatural interventions in favor of mechanisms currently in operation. Yet, this dogmatic methodological commitment sometimes caused them to *compromise* their own empirical rigor when confronted with glaring unconformities that strongly suggested rapid, violent upheavals.'

Based on the contextual cues provided by the author, match each highlighted term with its precise rhetorical usage within the text.

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Öğeler

arrest
apprehend
license
compromise

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Cevap

The correct pairings match 'arrest' with 'to halt or impose order upon', 'apprehend' with 'to comprehend or conceptualize', 'license' with 'excessive theoretical liberty', and 'compromise' with 'to imperil or weaken'.
Each highlighted term relies on its secondary or academic definition within the passage. 'Arrest' is used mechanically to signify halting or controlling. 'Apprehend' operates epistemologically, meaning to mentally grasp. 'License' carries a negative methodological connotation of taking undue liberties. Finally, 'compromise' is used to denote the weakening or endangering of rigorous standards.

Adım Adım Çözüm

1
Analyze the context surrounding 'arrest'.
The passage describes an attempt to control a 'chaotic influx', indicating that 'arrest' means to stop or contain.
Determining how the direct object of the verb dictates its specific definition.
2
Examine the usage of 'apprehend'.
The researchers sought to 'apprehend the deep history' through observation, which implies mental comprehension rather than physical capture.
Contrasting the epistemological goal of the researchers with alternative literal meanings.
3
Evaluate the phrase 'interpretive license'.
Since the models 'rejected' this in favor of observable mechanisms, 'license' denotes taking unwarranted liberties.
Identifying the negative connotation of the term in strict methodological contexts.
4
Interpret 'compromise their own empirical rigor'.
Faced with conflicting evidence, their rigor was weakened or endangered.
Distinguishing the destructive sense of the word from its neutral meaning of reaching an agreement.

Anahtar Kavram

Vocabulary in Context
Soru 68Soru →

Read the following passage from an essay on behavioral economics:

'Classical economists argue that consumers generally behave irrationally when purchasing complex financial products. Yet, this view ignores the reality that people frequently value stability over maximum profit. For instance, empirical studies demonstrate that most investors choose lower-yield fixed-rate bonds over volatile high-yield stocks during economic downturns. This pattern indicates that investors are intentionally minimizing risk rather than merely failing to maximize returns. Consequently, we must conclude that the traditional metric for measuring economic rationality is fundamentally flawed.'

Match each statement excerpted from the passage to its precise logical role within the argument.

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Öğeler

consumers generally behave irrationally when purchasing complex financial products
most investors choose lower-yield fixed-rate bonds over volatile high-yield stocks during economic downturns
investors are intentionally minimizing risk rather than merely failing to maximize returns
the traditional metric for measuring economic rationality is fundamentally flawed

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Cevap

The correct pairings identify the opposing view, the empirical evidence, the intermediate conclusion, and the main conclusion in structural order.
The argument begins by introducing an opposing view held by classical economists, which it then pivots away from using 'Yet'. It provides empirical evidence about investor behavior as a premise. From this premise, it draws an intermediate conclusion that investors are intentionally minimizing risk. Finally, this intermediate conclusion is used to support the main conclusion, indicated by 'Consequently', that the traditional metric of rationality is flawed. The pairs accurately map each excerpt to these specific roles.

Adım Adım Çözüm

1
Analyze the first sentence and the pivot word 'Yet'.
Identified that the claim about consumers behaving irrationally belongs to classical economists and is rejected by the author.
To determine the role of the first excerpt, which is a viewpoint the argument criticizes.
2
Evaluate the statement introduced by 'For instance'.
Recognized that the observation about investors choosing fixed-rate bonds is empirical evidence supporting the author's counter-argument.
To classify the second excerpt as a factual premise.
3
Trace the logical flow from the evidence to the final sentence.
Determined that the claim about intentionally minimizing risk is inferred from the evidence and leads to the final conclusion.
To identify the third excerpt as an intermediate conclusion.
4
Identify the structural indicator 'Consequently' in the final sentence.
Concluded that the claim about the traditional metric being flawed is the ultimate point of the passage.
To confirm the fourth excerpt as the main conclusion.

Anahtar Kavram

Determining Statement Roles in Complex Arguments
Soru 69Soru →

An archaeologist argues: 'Pottery fragments from the ancient Zanthian culture found in coastal excavations are consistently much harder than those found at inland Zanthian sites. This proves that centuries of exposure to salty coastal air chemically strengthened the clay.'

To protect this causal argument from criticism, the archaeologist must assume several 'defender' statements that rule out alternate explanations. Match each alternate explanatory objection below to the specific defender assumption that logically neutralizes it.

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Öğeler

The coastal Zanthians may have fired their pottery at much higher temperatures than inland Zanthians did.
The raw clay deposits available in the coastal region might have naturally contained more hardening silicates than inland deposits.
The harsh coastal climate may have completely destroyed all but the most durable pottery, whereas inland conditions preserved weaker pieces.
Coastal Zanthians might have deliberately designed their pottery to be substantially thicker to withstand rough ocean travel.

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The correct matches pair each specific alternate causal explanation with the negative assumption that explicitly rules it out. The firing temperature objection matches the assumption about kiln heat; the raw clay objection matches the assumption about unworked geological materials; the climate destruction objection matches the assumption about environmental filtering; and the deliberate thickness objection matches the assumption about structural dimensions.
Each correct pair successfully matches a specific threat to the argument's causal conclusion with the negative assumption that neutralizes that precise threat. In Logical Reasoning, when an author argues that A causes B based on an observed difference, they necessarily assume that no other factor (C, D, or E) caused that difference. Mapping the specific alternate explanation to its corresponding negative assumption demonstrates mastery of how 'defender' assumptions operate.

Adım Adım Çözüm

1
Analyze the core argument.
The archaeologist concludes that salty air (cause) strengthened the coastal pottery (effect), based solely on the correlation that coastal pottery is harder than inland pottery.
Understanding the exact cause and effect relationship is necessary to identify vulnerabilities in the reasoning.
2
Identify the role of a defender assumption in a causal argument.
A defender assumption must protect the causal conclusion by eliminating a plausible alternate explanation (confounding variable) for the observed difference in pottery hardness.
This establishes the criteria for a correct match: the assumption must directly negate the specific alternate cause.
3
Evaluate the first objection (firing temperatures) and locate the matching assumption.
The objection regarding higher firing temperatures is neutralized by the assumption that there was no significant difference in the heat levels of the kilns used.
Ruling out a difference in manufacturing heat explicitly defends against the manufacturing alternate explanation.
4
Evaluate the second objection (raw clay composition) and locate the matching assumption.
The objection regarding natural hardening silicates is neutralized by the assumption that unworked geological materials were not inherently stronger on the coast.
Ruling out baseline material differences defends against the raw resources alternate explanation.
5
Evaluate the third objection (coastal climate destruction) and locate the matching assumption.
The objection regarding the destruction of weaker pottery is neutralized by the assumption that environmental erosion did not act as a disproportionate filter.
Ruling out survivorship bias defends against the sample selection alternate explanation.
6
Evaluate the fourth objection (thicker designs) and locate the matching assumption.
The objection regarding thicker design for ocean travel is neutralized by the assumption that the structural dimensions and thickness were essentially comparable.
Ruling out differences in physical design defends against the structural alternate explanation.

Anahtar Kavram

Defender Assumptions in Causal Reasoning (Ruling Out Alternate Explanations)
Soru 70Soru →

Analyze each of the following short arguments and match it to the abstract description of the method of reasoning it employs.

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Öğeler

To resolve the company's financial crisis, we must either declare bankruptcy or secure a buyout. Since our creditors have explicitly refused to allow bankruptcy proceedings, our only path forward is to secure a buyout.
You claim that lowering taxes always increases government revenue by stimulating growth. But if that principle were universally true, a business could achieve infinite profits simply by reducing its prices to zero, which is clearly impossible.
The hypothesis that the region's ancient civilization collapsed due to a single, sudden climatic shift is incorrect. Tree-ring data from that exact period shows that the climate changed gradually over a span of three hundred years.
Many reject the new dietary guidelines because the underlying study was conducted on rodents, which did not show improved health. However, rodents process these specific macronutrients through a completely different metabolic pathway than humans.

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Cevap

The financial crisis argument matches establishing a conclusion by eliminating an alternative. The tax policy argument matches rejecting a principle by showing an absurd result. The ancient civilization argument matches refuting a hypothesis with empirical data. The dietary guidelines argument matches undermining an argument via a relevant dissimilarity.
Each argument utilizes a distinct structural technique. The first uses process of elimination. The second uses an analogy to demonstrate absurdity. The third uses contradictory physical data. The fourth invalidates a comparison by showing the subjects are not suitably similar.

Adım Adım Çözüm

1
Analyze the financial crisis argument to identify its core rhetorical strategy.
The argument presents two options and eliminates one because creditors refuse it.
This structural analysis allows us to match it to 'Establishing a conclusion by demonstrating the impossibility of the only alternative option.'
2
Evaluate the tax policy argument's logical method.
The argument draws a parallel between government taxes and business prices, showing that the logic leads to the impossible claim of infinite profits.
This corresponds directly to 'Rejecting a general principle by showing that its application to an analogous situation leads to an absurd result.'
3
Examine the reasoning in the historical hypothesis argument.
It introduces tree-ring data (physical evidence) to show a sudden climatic shift did not occur.
This matches the definition of 'Refuting a proposed hypothesis by introducing empirical data that is incompatible with it.'
4
Determine the argumentative technique in the dietary guidelines argument.
It attacks a conclusion based on animal testing by pointing out that human and rodent metabolisms are completely different.
This perfectly aligns with 'Undermining an argument by pointing out a relevant dissimilarity that invalidates its underlying comparison.'

Anahtar Kavram

General Method of Reasoning
Soru 71Soru →

Review the following argumentative passages and pair each with the abstract description that most accurately characterizes its primary method of reasoning.

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Öğeler

The sudden decline in the local bee population must be attributed to the new chemical pesticide introduced by farmers last month. The only other scientifically plausible causes for such a rapid collapse are viral disease, severe weather events, or abrupt habitat loss. However, local weather patterns have been uncharacteristically mild, no known pathogens were found in the tested hives, and the surrounding flora remains entirely undisturbed.
A prominent senator argues that the federal government should only fund art projects that are universally inoffensive. However, if we were to strictly adhere to this proposed standard, we would have to defund every single public gallery and museum in the country. This is because virtually any piece of art, ranging from abstract modern sculptures to classical historical portraits, has the potential to offend at least one individual.
Just as a responsible physician would never prescribe a drastic medical treatment without first thoroughly diagnosing the underlying illness of the patient, a corporate manager should not implement sweeping structural reforms without first identifying the specific operational inefficiencies causing the company's revenue decline. Therefore, we must conduct a comprehensive internal audit before we even consider reorganizing the administrative departments.
Many prominent economists assert that technological advancement invariably leads to an increase in overall employment over time by creating entirely new industries. However, this absolute claim is contradicted by the rapid adoption of automated agricultural harvesters in the 1930s, which permanently displaced millions of manual farm workers without creating any commensurate number of jobs in the manufacturing sector for those specific displaced individuals.

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Cevap

The correct pairings match each specific argument to its abstract logical structure: the bee population argument uses elimination of alternatives, the art funding argument uses reductio ad absurdum, the corporate manager argument uses analogy, and the employment argument uses a counterexample.
Each passage employs a distinct method of reasoning that corresponds perfectly to one of the abstract descriptions provided. Analyzing the logical structure—how the premises relate to the conclusion—reveals the underlying strategy of each argument independently of its specific subject matter.

Adım Adım Çözüm

1
Analyze the structural strategy of the first passage regarding the bee population.
The argument lists possible alternative causes for the decline and provides evidence to rule each one out.
This corresponds directly to the strategy of 'demonstrating the implausibility of all competing explanations'.
2
Analyze the structural strategy of the second passage regarding art funding.
The argument takes the senator's premise and shows it leads to the extreme and unworkable outcome of defunding all galleries.
This perfectly aligns with 'demonstrating that its logical extension yields an unacceptable or absurd outcome'.
3
Analyze the structural strategy of the third passage regarding corporate restructuring.
The argument compares a corporate manager's situation to a physician's diagnostic process to justify a recommended action.
This matches the description of 'illustrating a parallel to a structurally similar situation'.
4
Analyze the structural strategy of the fourth passage regarding technological advancement and employment.
The argument presents the 1930s harvester example to disprove the absolute claim that technology always increases employment.
This fits the description of 'refuting a universal generalization by highlighting a specific historical instance'.

Anahtar Kavram

Identifying abstract patterns of logical reasoning and rhetorical strategies in diverse arguments.
Soru 72Soru →

Carefully analyze the argument below. Match each excerpted statement from the stimulus to the precise structural role it plays in the author's reasoning.

Argument:
Critics of contemporary public arts funding contend that subsidizing avant-garde installations alienates the general populace, thereby undermining the democratic purpose of public grants. This objection, however, rests on a fundamental misunderstanding of democratic engagement. True democratic engagement requires challenging prevailing norms, not merely reflecting them. Subsidizing provocative art introduces cognitive friction into public discourse. Such friction invariably prompts citizens to reevaluate their tacit societal assumptions. Consequently, encountering avant-garde installations actively cultivates the critical thinking essential for a functioning democracy. Thus, funding these installations, far from undermining democratic purposes, directly fulfills them.

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Öğeler

subsidizing avant-garde installations alienates the general populace
True democratic engagement requires challenging prevailing norms, not merely reflecting them.
encountering avant-garde installations actively cultivates the critical thinking essential for a functioning democracy.
funding these installations, far from undermining democratic purposes, directly fulfills them.

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Cevap

The correct mapping pairs the alienation claim to the opponents' causal mechanism; the requirement for democratic engagement to a normative premise; the cultivation of critical thinking to a subsidiary conclusion; and the assertion that funding fulfills democratic purposes to the primary conclusion.
The argument's architecture relies on first establishing an opposing view and its reasoning (the critics' mechanism of alienation). The author immediately rejects this by offering a normative premise defining 'true democratic engagement.' The author then provides a causal chain—provocative art creates cognitive friction, which causes citizens to reevaluate assumptions. This chain yields a subsidiary conclusion: the art cultivates critical thinking. Finally, by combining the normative premise and the subsidiary conclusion, the author deduces the primary conclusion: funding these installations fulfills democratic purposes.

Adım Adım Çözüm

1
Identify the main conclusion of the argument.
The final sentence ('Thus, funding these installations... directly fulfills them') is the main point the author wants to prove.
It represents the author's ultimate stance and is supported by all preceding evidence while directly refuting the critics introduced in the first sentence.
2
Analyze the opponent's viewpoint presented at the beginning.
The critics argue that the funding is bad because it 'alienates the general populace'.
Recognizing the opposing argument helps distinguish the author's premises from the background context being attacked.
3
Determine the structural role of the author's supporting statements.
The statement about 'True democratic engagement' acts as a foundational rule or principle (a premise).
It defines a central concept without being derived from any other statements in the text.
4
Evaluate the statement marked by 'Consequently'.
The statement that art 'cultivates critical thinking' is an intermediate conclusion.
It is supported by the premises about 'cognitive friction' and 'reevaluating assumptions', and it serves to support the main conclusion.

Anahtar Kavram

Dissecting complex arguments into main conclusions, subsidiary conclusions, contextual opposing views, and normative premises.
Soru 73Soru →

Match each conditional statement regarding corporate merger regulations on the left with its logically valid contrapositive on the right.

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Öğeler

The merger will be approved only if the antitrust division grants clearance and the competing firm withdraws its lawsuit.
Approval of the merger requires that the antitrust division grants clearance or the competing firm withdraws its lawsuit.
The merger is guaranteed to be approved if the antitrust division grants clearance and the competing firm withdraws its lawsuit.
The antitrust division granting clearance or the competing firm withdrawing its lawsuit is sufficient for the merger to be approved.

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The logically valid pairs map combinations of necessary/sufficient conditions with their De Morgan's Law contrapositives. 'Approved only if... and...' pairs with 'If not... or not..., not approved'. 'Requires that... or...' pairs with 'If fails to... and refuses to..., not approved'. 'Guaranteed to be approved if... and...' pairs with 'If not approved, then either not... or not...'. '...or... is sufficient for' pairs with 'If not approved, it must be that failed to... and failed to...'.
Each correct pair properly executes the two mandatory steps of forming a complex contrapositive: (1) flipping the necessary and sufficient conditions while negating both sides, and (2) applying De Morgan's Laws to switch any negated 'AND' operator to an 'OR' operator, and vice versa.

Adım Adım Çözüm

1
Define variables for the three propositions to systematically evaluate the logical structures without relying on English syntax.
Let M = 'Merger is approved'. Let C = 'Antitrust division grants clearance'. Let W = 'Competing firm withdraws lawsuit'.
Using symbolic logic prevents confusion caused by complex phrasing and varied conditional trigger words (only if, requires, sufficient, guaranteed).
2
Translate the four left-side conditional statements into formal logic.
Statement 1: M → (C and W). Statement 2: M → (C or W). Statement 3: (C and W) → M. Statement 4: (C or W) → M.
Accurately identifying necessary versus sufficient conditions is mandatory before forming a contrapositive.
3
Form the logically valid contrapositive for each translated statement by reversing the arrow and negating both sides.
Contrapositive 1: ~(C and W) → ~M. Contrapositive 2: ~(C or W) → ~M. Contrapositive 3: ~M → ~(C and W). Contrapositive 4: ~M → ~(C or W).
The contrapositive is the only inherently valid inference that can be drawn from a standard conditional statement.
4
Apply De Morgan's Laws to distribute the negations across the compound 'AND' / 'OR' conditions.
Contrapositive 1: (~C or ~W) → ~M. Contrapositive 2: (~C and ~W) → ~M. Contrapositive 3: ~M → (~C or ~W). Contrapositive 4: ~M → (~C and ~W). These directly map to the four statements on the right.
Negating a conjunction (AND) always yields a disjunction (OR), and negating a disjunction yields a conjunction.

Anahtar Kavram

Forming Complex Contrapositives using De Morgan's Laws
Soru 74Soru →

An art historian is analyzing a disputed Renaissance-style painting to determine its true origin. To resolve the debate, the historian employs an argument by elimination, systematically testing four competing hypotheses against forensic and historical evidence. By ruling out each proposed origin using mutually exclusive physical or stylistic contradictions, the historian aims to isolate the single valid explanation. Match each of the four proposed hypotheses regarding the painting's origin with the specific piece of evidence the historian uses to successfully eliminate it.

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Öğeler

The hypothesis that the artwork is a 20th-century forgery designed to deceive contemporary collectors.
The hypothesis that the artwork is a 17th-century reproduction commissioned by a wealthy patron.
The hypothesis that the artwork is an authentic, late-career masterpiece by the renowned Renaissance master.
The hypothesis that the artwork was entirely created by the master's leading apprentice.

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Cevap

The hypotheses are systematically eliminated as follows: The 20th-century forgery is eliminated by the lack of post-1850 drying agents. The 17th-century reproduction is eliminated by the use of a pigment lost between 1590 and 1941. The late-career master hypothesis is eliminated by the grid-based underdrawing contradicting his late freehand style. The apprentice hypothesis is eliminated by the use of a glazing technique the student explicitly condemned.
The correct matching perfectly aligns each proposed historical hypothesis with the specific premise that logically invalidates it through chronological, material, or stylistic contradiction, successfully demonstrating the process of elimination.

Adım Adım Çözüm

1
Analyze the chronological constraints of the 20th-century forgery hypothesis.
The painting lacks artificial drying agents that are universally present in all paints manufactured after 1850.
Argument by elimination requires identifying a physical or historical contradiction that makes the proposed hypothesis physically impossible.
2
Evaluate the 17th-century reproduction hypothesis against the chemical pigment evidence.
The 17th century falls squarely within the 1590–1941 historical gap during which the specific lead-tin yellow pigment was lost and unavailable.
If a necessary material did not exist during a specific century, the artifact could not have been created during that time.
3
Assess the late-career master hypothesis based on internal stylistic evidence.
The rigid, grid-based underdrawing directly contradicts the strictly freehand method the master exclusively used in his final decades.
A hypothesis specifying a particular career period must logically align with the exclusive, documented methods of that exact period.
4
Examine the apprentice hypothesis against biographical and technical evidence.
The painting relies on a glazing technique that the apprentice explicitly rejected and never used in practice.
Consistent, documented rejection of a technique by an artist logically rules them out as the creator of a work heavily relying on that exact technique.

Anahtar Kavram

Argument by Elimination
Tahmini Süre:2m 0s
Soru 75Soru →

Match each ethical principle of scientific data sharing to the factual scenario it most strictly governs based on its conditional logic.

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Öğeler

A researcher is ethically obligated to share raw data with a competitor if the competitor's findings directly contradict the researcher's published work, unless the raw data contains personally identifiable information that cannot be safely redacted.
A researcher is ethically prohibited from sharing raw data with a competitor if the data was collected under a strict non-disclosure agreement, even if the competitor's findings contradict the researcher's published work, provided the agreement was signed before the competitor's research began.
A researcher is permitted, but not obligated, to share raw data with a competitor if the competitor is attempting to verify the researcher's published results through exact replication, provided the researcher has already secured a formal patent for the methodology.
A researcher is obligated to withhold raw data from a competitor if sharing it would jeopardize an ongoing, uncompleted secondary study by the researcher, regardless of whether the competitor's findings contradict the researcher's own, unless the competitor has obtained explicit overriding authorization from an independent ethics review board.

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Cevap

Principle 1 matches Dr. Aris's scenario. Principle 2 matches Dr. Bell's scenario. Principle 3 matches Dr. Chen's scenario. Principle 4 matches Dr. Diaz's scenario.
Each factual scenario correctly matches only one principle by strictly satisfying its conditional logic, including sufficient triggers (e.g., contradicting findings, jeopardizing a secondary study) and avoiding necessary exceptions (e.g., unredactable PII, ethics board approval). Overriding clauses ('regardless of', 'even if') resolve overlapping conditions.

Adım Adım Çözüm

1
Analyze Principle 1's conditional logic.
Obligation to share is triggered by contradicting findings, unless there is unredactable PII.
Establishing the precise sufficient and necessary conditions is required before evaluating the scenarios to avoid keyword traps.
2
Evaluate the scenarios against Principle 1.
Dr. Aris's scenario is the only true match. Findings contradict, and while PII exists, it can be securely anonymized (avoiding the 'unless' exception).
Dr. Diaz's scenario also features contradicting findings, but Principle 4 explicitly overrides this obligation.
3
Analyze Principle 2 and locate its matching scenario.
Principle 2 prohibits sharing if an NDA was signed before the competitor began. Dr. Bell's scenario matches this perfectly (NDA in January, competitor in March).
Principle 2 explicitly states it applies 'even if' findings contradict, completely overriding Principle 1's trigger.
4
Differentiate between Principle 3 and Principle 4 using the remaining scenarios.
Dr. Chen matches Principle 3 (replication attempt + patent allows permission). Dr. Diaz matches Principle 4 (jeopardizing a secondary study mandates withholding, lacking ethics approval).
Keyword traps like 'patent' in Dr. Diaz's scenario or 'ethics board' in Dr. Chen's scenario must be bypassed by relying strictly on the core sufficient triggers.

Anahtar Kavram

Applying complex conditional normative principles to specific factual scenarios by carefully tracking sufficient and necessary conditions, exceptions ('unless'), and overriding clauses.
Soru 76Soru →

Match each of the following argument excerpts to the precise abstract description of the logical fallacy it commits.

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Öğeler

The new municipal zoning regulations are clearly unconstitutional. Dr. Vance, a Nobel laureate in theoretical physics, has published a detailed essay outlining why they violate fundamental legal rights.
The city council must approve the proposed bailout for the local transit authority. If they do not, thousands of hardworking parents will instantly lose their jobs and their children will suffer immensely.
The new artificial sweetener must be completely safe for human consumption. A recent nationwide poll reveals that over eighty percent of consumers believe it poses no health risks whatsoever.
The proposed chemical plant will not contaminate the local river. We can be certain of this because the lead developer of the plant assured the zoning board that their safety protocols are completely foolproof.

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Cevap

The excerpt about Dr. Vance matches with appealing to an irrelevant authority; the transit bailout excerpt matches with eliciting sympathy; the sweetener excerpt matches with treating widespread acceptance as sufficient evidence; and the chemical plant excerpt matches with accepting testimony from a party with a vested interest.
Each excerpt contains a classic logical fallacy involving an illegitimate appeal. The first excerpt appeals to an expert in the wrong field. The second excerpt uses emotional manipulation rather than relevant evidence. The third excerpt relies on popular opinion to determine a factual matter. The fourth excerpt blindly trusts a heavily biased source.

Adım Adım Çözüm

1
Analyze the first excerpt regarding the zoning regulations.
The argument cites a Nobel laureate in physics to prove a point about constitutional law.
Identifying the mismatch between the cited expert's field and the topic of the conclusion reveals an appeal to an unqualified authority.
2
Analyze the second excerpt regarding the transit bailout.
The argument focuses entirely on the suffering of parents and children if the bailout is rejected.
Recognizing that the premise tries to evoke pity rather than addressing the financial or practical merits of the bailout identifies the appeal to emotion.
3
Analyze the third excerpt regarding the artificial sweetener.
The argument uses the belief of eighty percent of consumers to prove a scientific claim about safety.
Noting that widespread public belief does not equate to scientific fact identifies the appeal to majority (ad populum).
4
Analyze the fourth excerpt regarding the chemical plant.
The argument relies on the assurances of the plant's lead developer to prove the plant is environmentally safe.
Understanding that the developer has a strong bias and stands to benefit from the plant's approval identifies the reliance on a non-neutral or biased authority.

Anahtar Kavram

Identifying various forms of appeal fallacies (authority, emotion, majority, and bias) by their abstract logical descriptions.
Soru 77Soru →

Match each of the logically flawed arguments below to the abstract description that most accurately identifies its specific error in reasoning regarding the relationship between parts and wholes.

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Öğeler

Each individual brick used to construct the new garden retaining wall can easily be lifted by a single person. Therefore, the completed retaining wall can easily be lifted by a single person.
The country's biotechnology sector is currently experiencing rapid, unprecedented economic expansion. It necessarily follows that BioGenetics Inc., a modest local startup within that sector, is experiencing unprecedented economic expansion.
None of the individual pieces of evidence presented by the prosecution is, on its own, sufficient to prove the defendant's guilt. Thus, the prosecution's entire body of evidence fails to prove the defendant's guilt.
The university's philosophy department is widely recognized by academic journals as having the most ideologically diverse faculty in the nation. Consequently, Professor Higgins, a member of that department, must personally hold ideologically diverse views.

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Cevap

The arguments logically pair with their descriptions by correctly distinguishing whether the reasoning illegitimately moves from part-to-whole (composition) or whole-to-part (division), and by accurately identifying the specific domain (e.g., physical structures, abstract categories, aggregates of evidence, or collective bodies) in which the flaw occurs.
Each match correctly aligns the specific direction of the logical leap (from parts to a whole, or from a whole to its parts) and the specific nature of the subjects involved (physical objects, categories, evidentiary aggregates, or groups of people) with the corresponding generalized LSAT flaw description.

Adım Adım Çözüm

1
Analyze the first argument regarding the retaining wall.
Identified as a composition flaw moving from the physical parts (bricks) to a physical whole (retaining wall). Maps to the description concerning physical structures.
To isolate the direction of the flaw and the nature of the entity being evaluated.
2
Analyze the second argument regarding the biotechnology sector.
Identified as a division flaw moving from a macro-level category (sector) to a specific entity within it (startup). Maps to the description concerning broader categories.
To distinguish abstract categorical reasoning from physical or collective reasoning.
3
Analyze the third argument regarding the body of evidence.
Identified as a composition flaw moving from individual pieces of an aggregate (evidence) to the capability of the collective whole. Maps to the description concerning aggregates meeting a standard.
To connect the specific context of cumulative sufficiency to the correct abstract structural flaw.
4
Analyze the fourth argument regarding the philosophy department.
Identified as a division flaw moving from a collective trait of a group (diversity) to an individual member (Professor Higgins). Maps to the description concerning collective bodies and individual members.
To accurately categorize the misapplication of a group property to an individual.

Anahtar Kavram

Composition and Division (Part to Whole)
Soru 78Soru →

Match each logical argument to the specific statement that, if assumed, enables the argument's conclusion to be properly drawn.

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Öğeler

Any philosophical framework that fundamentally relies on purely theoretical entities violates the established principle of parsimony, rendering it methodologically suspect. Consequently, string theory inherently violates this foundational principle of parsimony. This is because its core mathematical models necessarily posit the existence of multiple extra spatial dimensions beyond the observable universe.
The newly proposed municipal planning reform will undoubtedly alleviate the city's severe and persistent housing shortage. The legislation completely abolishes a series of outdated and restrictive zoning ordinances. Empirical economic evidence demonstrates conclusively that removing such archaic restrictions invariably stimulates the local construction sector to build high-density developments.
A central bank's monetary policy can successfully curb runaway inflation only if it significantly diminishes aggregate consumer spending within the economy. Therefore, the central bank's recent aggressive series of interest rate hikes will successfully curb inflation, as preliminary market data indicates these rate hikes have already begun to diminish consumer spending.
The corporate board's unilateral decision to rapidly liquidate the struggling subsidiary's assets was clearly and objectively unethical. In executing this liquidation, the board explicitly prioritized the immediate distribution of shareholder dividends over the long-term financial security and well-being of the subsidiary's dedicated workforce.

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Cevap

Argument 1 pairs with the definition of theoretical entities; Argument 2 pairs with the construction sector guarantee; Argument 3 pairs with the economic intervention sufficiency; Argument 4 pairs with the moral principle on corporate ethics.
Each correct pairing provides the exact missing premise required to make its corresponding argument formally valid. This involves bridging concept gaps, connecting intermediate steps to final outcomes, fixing conditional logic flaws, and supplying underlying moral principles.

Adım Adım Çözüm

1
Analyze the philosophical argument regarding string theory.
The argument has a concept gap. The premise introduces 'extra spatial dimensions', but the conclusion relies on the rule for 'purely theoretical entities'.
To guarantee the conclusion, an assumption must bridge this vocabulary gap by explicitly classifying these dimensions as theoretical entities.
2
Analyze the public policy argument regarding housing reform.
The argument proves the reform 'stimulates the construction sector', but the conclusion leaps to the claim that it will 'alleviate the housing shortage'.
A sufficient assumption must state that the proven intermediate result (stimulating construction) is enough to guarantee the final outcome (alleviating the shortage).
3
Analyze the economic argument regarding monetary policy.
The argument contains a conditional logic flaw. It states that diminishing spending is necessary ('only if') to curb inflation, but then treats it as if it is sufficient to guarantee the curbing of inflation.
The required assumption must fix this flaw by explicitly stating that reducing purchasing activity (diminishing spending) is sufficient to arrest rising prices (curb inflation).
4
Analyze the ethical argument regarding corporate liquidation.
The premise establishes a factual action (prioritizing dividends over security), while the conclusion makes a normative moral judgment ('unethical').
We need a bridge principle that explicitly connects the factual action to the normative judgment, defining that specific prioritization as ethically impermissible.

Anahtar Kavram

Identifying the missing logical link or repairing the logical flaw to create a valid deductive argument where the conclusion is entirely guaranteed by the premises.
Soru 79Soru →

Match each of the following flawed arguments (Left) with the abstract logical description of its specific sampling or survey error (Right).

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Öğeler

To gauge citywide support for a new nighttime noise ordinance, the city council surveyed residents who attended a 2:00 PM Wednesday town hall meeting. Finding that 85% supported the measure, the council concluded that a vast majority of the city's population favors the ordinance.
A productivity app developer sought to prove their tool increases daily output. They sent an in-app questionnaire asking, 'How much has our app helped you achieve your goals this week?' and concluded from the overwhelmingly positive responses that the app objectively boosts productivity.
An historian analyzed the structural integrity of 18th-century wooden ships by examining the five vessels from that era currently preserved in maritime museums. Because all five exhibit exceptional craftsmanship, the historian concluded that 18th-century shipbuilders universally maintained extremely high structural standards.
A restaurant chain implemented a new QR-code feedback system on their receipts. After a month, 90% of the submitted reviews were heavily critical of the service speed. Management concluded that nearly all of their customers are dissatisfied with the speed of service.

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Cevap

The town hall survey matches the temporal exclusion flaw; the app survey matches the presuppositional phrasing flaw; the historian matches the survival subset flaw; and the restaurant matches the self-selection flaw.
Each argument commits a distinct sampling or survey flaw. The town hall argument surveys people at a highly restrictive time, excluding a massive demographic. The app developer uses a leading question that forces a positive premise. The historian looks only at surviving artifacts, which inherently misrepresents the average quality of all artifacts originally produced. Finally, the restaurant relies on a voluntary feedback mechanism, which disproportionately attracts dissatisfied customers.

Adım Adım Çözüm

1
Analyze the town hall scenario to identify its specific flaw.
The sample was taken at 2:00 PM on a Wednesday, excluding those who work standard hours.
This matches the abstract description of generalizing based on a sample that systematically excludes individuals unavailable at a specific time.
2
Analyze the app developer scenario.
The survey asks 'How much has our app helped,' forcing a positive framework.
This matches the abstract description of relying on survey responses elicited by phrasing that presupposes the truth of the conclusion.
3
Analyze the historian scenario.
The historian evaluates only ships that survived hundreds of years in museums.
This matches the description of basing a judgment on a subset that possesses a characteristic merely by virtue of enduring to the present (survivorship bias).
4
Analyze the restaurant scenario.
The data comes from a voluntary QR-code system where customers must choose to leave feedback.
This matches the description of taking for granted that individuals who self-select to participate are representative of the broader population.

Anahtar Kavram

Sampling and Survey Flaws
Soru 80Soru →

Review the following four scenarios, each containing a distinct methodological error related to data collection. Pair each scenario with the corresponding logical flaw description.

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A researcher evaluating a long-term diet program surveyed individuals who have strictly adhered to the diet for five years. Because nearly all of them reported improved cardiovascular health, the researcher concluded that the diet is guaranteed to improve the health of anyone who attempts it.
A technology blogger posted a poll on her website asking whether people prefer traditional laptops or tablets. With most respondents favoring tablets, she concluded that the general public now strongly prefers tablets over traditional laptops.
During the first hour of a citywide festival, a food vendor noticed that the first four customers to visit her stall requested vegan options. She quickly deduced that the vast majority of festival attendees this year must follow a vegan diet.
A university administration surveyed students, asking, 'Do you agree that the university should implement the proposed tuition increase to maintain our prestigious academic facilities?' Because a majority agreed, the administration claimed students fully support the tuition hike.

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Cevap

The correct pairings match the diet program to survivorship bias (failing to account for dropouts), the tech blog to voluntary response bias (self-selected participants), the food vendor to small sample size (insufficient number of cases), and the university survey to leading questions (phrased to elicit a specific response).
Each scenario demonstrates a distinct violation of valid sampling principles. The diet study ignores attrition (survivorship bias). The tech poll relies on a non-random, self-selected internet audience (voluntary response bias). The vendor makes a broad claim based on four data points (small sample size). The university uses loaded language to skew results (leading question).

Adım Adım Çözüm

1
Evaluate the diet program scenario.
Identifies that measuring only those who 'strictly adhered' for five years creates a biased sample of survivors.
Failing to account for participants who dropped out invalidates the claim that the diet works for 'anyone'.
2
Evaluate the technology blogger scenario.
Identifies that a website poll relies on individuals who voluntarily choose to participate.
Self-selected respondents to a niche blog cannot reliably represent the general population.
3
Evaluate the food vendor scenario.
Identifies that a conclusion about the 'vast majority' is based on just four people.
An insufficiently small number of cases cannot support a sweeping generalization about a large group.
4
Evaluate the university administration scenario.
Identifies that the survey question justifies the fee hike by linking it to 'prestigious academic facilities'.
Phrasing an inquiry to elicit a specific positive response invalidates the survey results as objective evidence.

Anahtar Kavram

Identifying and differentiating common methodological flaws in sampling and surveys, including survivorship bias, voluntary response bias, unrepresentative sample sizes, and leading questions.
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