Examkin

Logical Flaws

245 soru

Tüm türler245Çoktan seçmeli128Çoklu seçim41Doğru / Yanlış16Eşleştirme60
Soru 201Soru →

City Planner: The community board's proposal to rezone the waterfront district should be rejected. The board's chairperson owns a significant amount of commercial property just outside the proposed rezoning area, so she stands to benefit financially if development is restricted along the waterfront.

Statement: The city planner's argument is logically flawed because it rejects the community board's recommendation strictly by pointing out the chairperson's vested financial interest, ignoring the actual viability of the rezoning plan itself.

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Cevap: True

Cevap

True
The city planner commits a source argument fallacy (specifically, a circumstantial ad hominem) by rejecting the rezoning plan based strictly on the potential financial gain of the board's chairperson. The statement to be evaluated accurately identifies this exact flaw, making it true.

Adım Adım Çözüm

1
Analyze the city planner's argument to determine the conclusion and the supporting premise.
Conclusion: The rezoning proposal should be rejected. Premise: The chairperson stands to benefit financially from the restriction.
Deconstructing the argument is necessary to accurately evaluate its logical structure and identify any gaps.
2
Evaluate the relationship between the premise and the conclusion to identify any logical flaws.
The premise attacks the circumstances and potential bias of the person presenting the proposal, rather than addressing the proposal's actual content or consequences.
Identifying the nature of the premise reveals whether the argument relies on a valid line of reasoning or a logical fallacy.
3
Compare the identified flaw with the provided statement.
The statement perfectly describes the flaw found in the argument: rejecting a recommendation based on the source's vested interest.
This confirms that the statement accurately characterizes the logical vulnerability of the city planner's reasoning.

Anahtar Kavram

Ad Hominem (Source Argument - Circumstantial)
Soru 202Soru →

Linguist: An analysis of isolated indigenous languages reveals a striking pattern: languages that lack distinct grammatical markers for the future tense are overwhelmingly spoken by communities that exhibit exceptionally high savings rates and long-term economic stability. It has been hypothesized that the structure of a language shapes its speakers' worldview. Our findings confirm this hypothesis: by forcing speakers to grammatically treat the future as equivalent to the present, these languages subconsciously compel their speakers to prioritize future needs, thereby fostering economic prudence.

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

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Cevap: fails to adequately address the possibility that a community's preexisting cultural attitudes toward time might have caused both the linguistic structure to evolve and the specific economic behaviors to emerge

Cevap

The correct answer is the option pointing out that the argument fails to address whether preexisting cultural attitudes might have caused both the linguistic structure and the economic behaviors.
The argument's central flaw is assuming a causal relationship based entirely on a statistical correlation. The correct option identifies this by pointing out a 'third variable' or common cause: a preexisting cultural attitude toward time could independently be the reason the language evolved to lack future markers AND the reason the community saves money. By failing to rule out this alternative explanation, the linguist's causal conclusion is entirely invalid.

Adım Adım Çözüm

1
Analyze the premises of the linguist's argument.
The argument establishes a statistical correlation between languages lacking future-tense markers and communities with high savings rates.
Identifying the core evidence is the first step in evaluating logical reasoning.
2
Identify the argument's main conclusion.
The linguist concludes that the grammatical structure of these languages actively causes the speakers to prioritize future needs and be economically prudent.
Understanding the exact claim being made is necessary to spot the structural flaw.
3
Evaluate the relationship between the premises and the conclusion.
The argument jumps directly from a correlation (two phenomena occurring together) to a definitive causal claim (the language structure causes the economic behavior).
This logical leap is a classic vulnerability on the LSAT.
4
Identify potential alternative explanations for the observed correlation.
A third underlying factor, such as a community's foundational cultural values toward time, could have independently caused both the language structure to evolve and the economic habits to form.
Finding a viable alternative explanation directly exposes the flaw in the author's strict causal conclusion.
5
Select the option that best describes this flaw.
The option describing a failure to consider a preexisting cultural attitude as a common cause perfectly matches our evaluation.
This confirms the correct diagnosis of the argument's vulnerability.

Anahtar Kavram

Correlation vs. Causation
Soru 203Soru →

An urban development commission observed that neighborhoods in the city with the highest density of coffee shops also experienced the most significant increases in residential property values over the last decade. Based on this observation, the commission concluded that the presence of coffee shops directly drives up local property values.

Which of the following statements, if true, would provide a valid alternative explanation for the observed correlation, thereby weakening the commission's conclusion? (Select all that apply)

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Cevap: Increases in property values attract wealthier demographics, creating a lucrative market that prompts entrepreneurs to open new coffee shops.; City-led initiatives to improve street lighting and safety simultaneously make neighborhoods more attractive to homebuyers and encourage new retail businesses, including coffee shops, to open.

Cevap

The correct choices are those providing alternative explanations: reverse causation (rising property values cause coffee shops to open) and a third variable (city improvements cause both).
The correct answers successfully weaken the argument's causal conclusion by providing valid alternative ways to interpret the observed correlation. One correct answer demonstrates reverse causation, suggesting the effect (rising property values) actually produced the presumed cause (more coffee shops). The other correct answer identifies a third variable (city improvements) that independently caused both phenomena at the same time.

Adım Adım Çözüm

1
Identify the argument's premise and conclusion.
Premise: A correlation exists between high coffee shop density and significant property value increases. Conclusion: Coffee shops directly cause property values to rise.
Deconstructing the argument is necessary to evaluate the logical leap from the premise to the conclusion.
2
Determine the logical flaw in the argument.
The argument assumes causation based solely on a correlation, completely ignoring other possible explanations for why the two factors appear together.
Identifying the central flaw helps predict what type of information would successfully weaken the conclusion.
3
Evaluate the answer choices against the predicted alternative explanations.
One correct option shows reverse causation, while another introduces a common third cause. The incorrect options strengthen the argument, provide irrelevant information, or improperly contradict the established premises.
To accurately select all applicable statements that properly weaken the causal claim.

Anahtar Kavram

Correlation does not imply causation. A correlation can often be explained by reverse causation, a third variable (common cause), or coincidence.
Soru 204Soru →

Match each argument on the left with the specific causal reasoning flaw it commits on the right.

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Öğeler

Medical surveys reveal that individuals who use sleep-tracking applications are significantly more likely to suffer from chronic insomnia than those who do not. Clearly, the nightly use of these applications disrupts natural sleep cycles.
Data from the agricultural sector shows a strong statistical link between an increase in the sale of heavy-duty irrigation equipment and a decline in overall crop yields. Therefore, modern irrigation equipment is actually detrimental to crop health.
An analysis of urban infrastructure indicates that over the past decade, the number of new coffee shops opened in the downtown area perfectly tracks the rise in sightings of a rare migratory bird species. Thus, the expansion of coffee culture is attracting these birds to the city.
Six months after the municipal government installed a new digital traffic management system, the city's overall traffic congestion decreased by 15 percent. The mayor announced that the new digital system successfully solved the city's traffic problem.

Eşleşmeler

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Cevap

The sleep tracker argument matches with reversing cause and effect. The irrigation argument matches with overlooking a common cause. The coffee shop argument matches with assuming a causal link from coincidental correlation. The traffic system argument matches with confusing temporal precedence with causality.
Each correct pairing accurately diagnoses the specific variation of the correlation-causation fallacy present in the stimulus. The sleep tracker scenario confuses the effect (insomnia) with the cause. The irrigation scenario ignores an underlying third factor (drought). The coffee shop scenario links two unrelated trends over time. The traffic scenario relies exclusively on the timeline to establish causation.

Adım Adım Çözüm

1
Analyze the sleep-tracking application argument.
Identified the flaw as reversing the causal relationship.
The conclusion explicitly states that using the applications causes insomnia, whereas the premises only establish a correlation. The logical gap is the high probability that preexisting insomnia drives the use of sleep trackers.
2
Analyze the irrigation equipment argument.
Identified the flaw as ignoring a third variable.
The correlation between buying water equipment and poor crops is best explained by an external factor—like drought—which causes both the poor crops and the need for irrigation.
3
Analyze the coffee shop and bird sighting argument.
Identified the flaw as spurious correlation.
Both events (opening coffee shops, bird sightings) likely increased independently over a decade. Linking them casually without a mechanism demonstrates a fundamental misunderstanding of coincidental trends.
4
Analyze the digital traffic management argument.
Identified the flaw as a temporal sequence flaw.
The mayor's claim relies entirely on the timeline of events (installation preceding reduction), failing to rule out other possible causes for the drop in congestion.

Anahtar Kavram

Correlation vs. Causation
Soru 205Soru →

Organizational psychologist: A company can build a truly innovative workplace culture only if it actively encourages its employees to take calculated risks without fear of reprisal. TechCorp recently implemented a policy that officially protects employees who take calculated risks from any negative consequences if those risks lead to failure. Therefore, TechCorp is successfully building a truly innovative workplace culture.

Which of the following best describes the logical flaw in the organizational psychologist's reasoning?

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Cevap: It treats a condition that is necessary for achieving a certain organizational outcome as being sufficient to guarantee that outcome.

Cevap

The option stating that it treats a condition that is necessary for achieving a certain organizational outcome as being sufficient to guarantee that outcome.
The argument states that encouraging calculated risks is a necessary condition for an innovative culture (indicated by the phrase 'only if'). It then establishes that TechCorp meets this necessary condition and concludes that TechCorp must therefore have an innovative culture. This fundamentally confuses a requirement for a guarantee, treating a necessary condition as if it were a sufficient condition.

Adım Adım Çözüm

1
Identify the conditional premise in the argument.
The premise is: Innovative Culture -> Encourages Calculated Risks (A company can build a truly innovative workplace culture ONLY IF it encourages calculated risks).
Understanding the established conditional relationship is required to evaluate the argument's logic.
2
Identify the remaining premise and the conclusion.
Premise 2: TechCorp encourages calculated risks. Conclusion: TechCorp is building an innovative culture.
Comparing the actual conclusion against the logical possibilities of the conditional premise reveals any structural flaws.
3
Evaluate the logical structure for validity.
The argument structure is: A -> B; B is true; Therefore, A is true. This is an invalid logical move known as an illegal reversal.
Recognizing the mismatch between valid conditional inference and the argument's actual inference.
4
Select the option that matches this diagnostic flaw.
The correct option describes mistaking a necessary condition (encouraging risks) for a sufficient condition (guaranteeing an innovative culture).
The question asks for the description of the reasoning flaw.

Anahtar Kavram

Necessary vs. Sufficient Condition Flaws
Soru 206Soru →

An educational psychologist conducted a longitudinal study on cognitive development and found a strong correlation: children who became bilingual before the age of five were significantly more likely to exhibit advanced mathematical problem-solving skills by age ten than their monolingual peers. The psychologist concluded that the process of acquiring a second language early in life directly enhances the specific neural pathways required for advanced mathematical reasoning.

Which of the following statements, if true, provide a valid alternative explanation for the observed correlation that weakens the psychologist's conclusion? (Select all that apply)

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Cevap: Parents who prioritize and have the resources to provide early second-language instruction often simultaneously enroll their children in accelerated mathematical enrichment programs.; Children who possess innate neurological advantages in abstract pattern recognition—the core of mathematical reasoning—are naturally more capable of easily acquiring multiple languages during early childhood.

Cevap

The correct statements are those identifying parental resources and priorities as a common cause, and innate neurological advantages as a reverse cause.
The correct answers effectively weaken the psychologist's conclusion by providing alternative explanations for the correlation. One answer identifies a third variable—parental resources and priorities—that independently causes both early bilingualism and advanced math skills. The other answer suggests reverse causality, proposing that innate neurological advantages for abstract reasoning actually cause the successful acquisition of a second language.

Adım Adım Çözüm

1
Analyze the argument's structure.
Premise: There is a correlation between early bilingualism and advanced math skills. Conclusion: Bilingualism causes advanced math skills.
Identifying the core causal claim is necessary to evaluate the argument's vulnerabilities.
2
Identify the logical flaw.
The argument assumes causation from a mere correlation, failing to consider alternative explanations.
Recognizing the 'correlation vs. causation' flaw dictates the strategy for weakening the argument.
3
Evaluate options for alternative causal explanations.
One correct option identifies a third variable (parents enrolling kids in multiple enrichment programs), while the other identifies reverse causality (innate math skills making language learning easier).
Valid alternative explanations successfully weaken the original causal conclusion by showing the correlation could exist without the author's proposed causal relationship.

Anahtar Kavram

Weakening a causal argument by identifying third-variable (common cause) and reverse-causation scenarios.
Soru 207Soru →

A five-year study of thousands of elderly residents in Maplewood County revealed a strong statistical link between frequent participation in mentally demanding volunteer work and a significantly lower incidence of severe cognitive decline. Based on these findings, public health officials have concluded that engaging in mentally demanding volunteer work helps protect elderly individuals against cognitive deterioration.

The reasoning in the public health officials' argument is most vulnerable to criticism on the grounds that it

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Cevap: overlooks the possibility that elderly individuals who are already experiencing early stages of cognitive deterioration are consequently less likely to participate in mentally demanding volunteer work.

Cevap

The argument overlooks the possibility that elderly individuals who are already experiencing early stages of cognitive deterioration are consequently less likely to participate in mentally demanding volunteer work.
The argument observes a correlation between a behavior (mentally demanding volunteer work) and a health outcome (lower incidence of cognitive decline) and immediately assumes that the behavior causes the outcome. It fails to consider that the causal relationship might be reversed: people who are already suffering from cognitive decline are likely less capable of, or willing to engage in, mentally demanding work.

Adım Adım Çözüm

1
Analyze the premises and conclusion of the argument.
Premise: There is a statistical link (correlation) between volunteering and lower cognitive decline. Conclusion: Volunteering helps protect against (causes a reduction in) cognitive decline.
Identifying the structural gap between the evidence provided and the claim made is the first step in finding a logical flaw.
2
Identify the primary flaw based on the leap from premise to conclusion.
The argument leaps from a correlation between two phenomena to a definitive causal claim.
Whenever an LSAT argument infers causation solely from correlation, it is vulnerable to alternative explanations for that correlation.
3
Determine the specific type of causal flaw or alternative explanation.
The argument fails to consider reverse causation: rather than A causing B, B might cause A. In this context, cognitive decline (or lack thereof) might cause the volunteering behavior.
To weaken a causal conclusion drawn from a correlation, one effective method is to show that the causal relationship might run in the opposite direction.

Anahtar Kavram

Correlation vs. Causation (Reverse Causality)
Tahmini Süre:2m 0s
Soru 208Soru →

Match each of the following flawed arguments to the abstract description of the Ad Hominem (Source Argument) fallacy it commits.

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Öğeler

The hospital administration should ignore Dr. Mercer's recommendation to purchase the new diagnostic imaging machines. Dr. Mercer's husband is the regional sales director for the manufacturer, so her assessment of their effectiveness is clearly biased and false.
A local fitness instructor insists that all gym members must strictly avoid consuming refined sugars to achieve their health goals. But we should disregard his dietary advice; he was seen eating a large donut in the parking lot this morning.
Professor Lin argues that the Bronze Age collapse was caused primarily by a shift in trade routes, citing newly discovered merchant logs. But Lin has a notoriously abrasive personality and was censured for insulting colleagues, so his historical theory is surely incorrect.

Eşleşmeler

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Cevap

The hospital scenario matches the vested interest description; the fitness instructor scenario matches the inconsistent behavior description; and the historian scenario matches the personal character attack description.
Each argument commits a specific variation of the source argument flaw. The hospital scenario attacks external motives (circumstantial ad hominem), the gym scenario attacks hypocritical behavior (tu quoque), and the professor scenario attacks personal character (abusive ad hominem).

Adım Adım Çözüm

1
Analyze the hospital administration argument.
The argument attacks Dr. Mercer because her husband works for the manufacturer.
This aligns with rejecting a claim due to a vested financial or personal interest.
2
Analyze the fitness instructor argument.
The argument rejects the instructor's advice because he was eating a donut.
This aligns with dismissing an argument because the speaker's behavior is inconsistent with their own advice.
3
Analyze the Professor Lin argument.
The argument attacks Lin's abrasive personality rather than addressing his evidence regarding trade routes.
This aligns with discrediting a conclusion by attacking personal character.

Anahtar Kavram

Ad Hominem (Source Argument)
Tahmini Süre:1m 30s
Soru 209Soru →

Transportation Official: Over the past five years, our city has selectively installed dedicated bicycle lanes in various neighborhoods. Data from the city's traffic department shows that neighborhoods where these bicycle lanes were installed have experienced a significant decrease in average automobile commuting times, whereas neighborhoods without new bicycle lanes have seen their commuting times remain completely stable. Therefore, it is clear that the installation of bicycle lanes is what caused the relief in traffic congestion for drivers in those areas.

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

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Cevap: fails to consider that an unstated third factor may be independently responsible for both the installation of the bicycle lanes and the decrease in average commuting times.

Cevap

The correct answer identifies that the official assumes a causal relationship (bicycle lanes caused reduced traffic) based entirely on a correlation, ignoring the possibility of a third variable causing both.
The argument commits a classic correlation-to-causation fallacy. The official observes that the installation of bicycle lanes and the decrease in traffic times happened together in certain neighborhoods. From this mere correlation, the official concludes that the bike lanes caused the reduced traffic. The correct answer points out that the official fails to consider an alternative explanation: a third factor (such as a comprehensive neighborhood road-improvement project that included bike lanes) might have simultaneously caused both the installation of the lanes and the improvement in traffic flow.

Adım Adım Çözüm

1
Analyze the argument's structure.
Premise: Neighborhoods with new bike lanes saw decreased traffic times; neighborhoods without them saw stable times. Conclusion: The bike lanes caused the decrease in traffic times.
Understanding the precise relationship between the evidence provided and the conclusion drawn is essential for identifying reasoning flaws.
2
Identify the logical flaw.
The official observes a correlation between two events (installation of bike lanes and decreased commuting times) and immediately concludes that one directly caused the other.
Arguments that jump from temporal or statistical correlation to absolute causation are inherently flawed on the LSAT because they ignore alternate explanations.
3
Evaluate the answer choices.
Look for an option that describes the correlation-causation fallacy, such as ignoring alternate causes, reverse causality, or an underlying third common factor.
Matching the abstract flaw identified in the stimulus to the specific descriptions in the choices leads directly to the correct answer.

Anahtar Kavram

Correlation vs. Causation
Soru 210Soru →

Match each argument demonstrating a causal flaw to the precise description of the logical error it commits.

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Öğeler

Academic support center data reveals that students who frequently use private tutoring services tend to have lower GPAs than students who study independently. The dean concludes that private tutoring sessions are confusing students and hindering their academic progress.
An analysis of municipal records shows a strong correlation between the number of public parks in a district and its annual rate of minor traffic collisions. A local columnist argues that visiting public parks causes citizens to adopt a more reckless mindset behind the wheel.
Over the last twenty years, global production of synthetic fabrics has increased dramatically. During the exact same period, the average annual rainfall in the Amazon basin has steadily decreased. A blogger concludes that the manufacturing of synthetic fabrics is causing the drought conditions.

Eşleşmeler

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Cevap

The academic tutoring argument exhibits reverse causality. The public parks argument overlooks a common third factor. The synthetic fabrics argument relies on a coincidental correlation over time.
Each argument commits a distinct variation of the correlation-causation fallacy. The tutoring argument reverses the actual causal direction. The parks argument ignores a broader third factor (like population density) driving both statistics. The fabrics argument takes two entirely independent long-term trends and assumes they are causally linked.

Adım Adım Çözüm

1
Analyze the tutoring argument for its causal assumption.
Identified that the dean assumes tutoring causes low GPAs, overlooking the obvious reality that struggling students are the ones who seek tutoring.
To pinpoint the specific flaw of confusing cause and effect.
2
Evaluate the public parks argument's core logic.
Noted that while parks and collisions are correlated, one does not logically cause the other. A common cause, like high population density, explains both.
To recognize the failure to consider a third-variable explanation.
3
Examine the synthetic fabrics argument.
Determined that the argument links two unrelated global trends simply because they occurred during the same twenty-year period.
To identify the flaw of treating a coincidental chronological alignment as proof of causation.

Anahtar Kavram

Distinguishing between different types of causal fallacies, including reverse causation, third-variable causes, and coincidental correlation.
Soru 211Soru →

Manager: Our employee handbook strictly dictates that all staff members must exhibit professionalism in the workplace. The handbook defines this as consistently arriving on time, adhering to the company dress code, and communicating respectfully with colleagues. Our lead developer's recent software upgrade was executed with an incredibly high degree of professionalism, utilizing the most advanced, robust programming techniques in the industry. Therefore, it is clear that the lead developer has fully fulfilled the handbook's mandate regarding professionalism.

The manager's reasoning is most vulnerable to criticism on the grounds that the argument does which of the following?

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Cevap: reaches a conclusion that depends on illicitly shifting the meaning of a key term between a policy definition and an evaluation of work product

Cevap

The correct option is the one stating that the argument reaches a conclusion that depends on illicitly shifting the meaning of a key term between a policy definition and an evaluation of work product.
The argument's reasoning is fundamentally flawed because it relies on equivocation. In the first half of the argument, 'professionalism' is explicitly defined as a set of workplace behaviors: arriving on time, following the dress code, and communicating respectfully. However, when evaluating the lead developer, the manager uses 'professionalism' to describe technical competence and the use of robust programming techniques. The conclusion that the developer fulfilled the behavioral mandate is entirely unsupported because it relies on the technical definition of the word rather than the required behavioral definition.

Adım Adım Çözüm

1
Identify the argument's main conclusion.
The main conclusion is that the lead developer has fully fulfilled the handbook's mandate regarding professionalism.
This sets the target for what the premises must logically prove.
2
Analyze the premises provided to support the conclusion.
Premise 1: Professionalism is defined behaviorally (arriving on time, dress code, respect). Premise 2: The developer's software upgrade was executed with 'professionalism' (meaning technical robustness and advanced techniques).
Deconstructing the premises reveals the underlying logic and definitions used by the author.
3
Compare the premise definitions to find the logical gap or flaw.
The term 'professionalism' means two completely different things. In the rule, it is about behavioral compliance. In the developer's evaluation, it is about technical quality.
Recognizing that the exact same word is being used in two distinct senses identifies the classic Equivocation flaw.
4
Match the identified flaw with the correct answer choice.
Select the option that describes shifting the meaning of a key term.
This directly describes the equivocation observed in the stimulus.

Anahtar Kavram

Equivocation (Uncertain Use of a Term)
Soru 212Soru →

Political Theorist: A truly democratic government must guarantee unconditional freedom of expression for all its citizens. We can be certain of this, because any system of governance that places limits on what people are allowed to say cannot genuinely be considered a democracy.

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

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Cevap: attempts to support its conclusion simply by restating that conclusion in slightly different terms

Cevap

The correct answer is the option indicating that the argument attempts to support its conclusion simply by restating that conclusion in slightly different terms.
The argument's conclusion states that a democracy requires freedom of expression. Its only premise states that without freedom of expression, a system is not a democracy. These two statements mean exactly the same thing. Therefore, the argument provides no independent evidence and merely restates its conclusion to prove itself.

Adım Adım Çözüm

1
Identify the main conclusion of the argument.
The conclusion is the first sentence: A truly democratic government must guarantee unconditional freedom of expression.
This is the primary claim the theorist is attempting to establish, and the rest of the passage is structured to justify it.
2
Identify the premises provided to support the conclusion.
The only supporting premise is: "any system of governance that places limits on what people are allowed to say cannot genuinely be considered a democracy."
The word "because" explicitly marks this statement as the evidence provided for the conclusion.
3
Analyze the logical relationship between the premise and the conclusion.
The premise states: If limits on speech exist -> not a democracy. The conclusion states: If a democracy exists -> no limits on speech.
These two conditional statements are contrapositives of each other, meaning they express the exact same logical relationship.
4
Determine the structural flaw resulting from this relationship.
The argument provides no independent evidence; it uses the conclusion itself (just phrased as its contrapositive) as the only premise.
Using a claim to prove itself is the definition of circular reasoning.

Anahtar Kavram

Circular reasoning (begging the question) occurs when an argument's conclusion is used as one of its premises, or when the premise simply restates the conclusion in different words, thereby providing no independent logical support.
Soru 213Soru →

Match each flawed argument with the specific description of its causal reasoning error.

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Öğeler

A hospital administrator notes that wards using the new advanced monitoring software have the highest patient mortality rates, concluding that the software introduces fatal medical errors.
A city planner argues that living near a community garden decreases stress, since residents within two blocks of such gardens report 30 percent fewer stress-related symptoms than others.
A music teacher claims that playing the violin increases a child's spatial reasoning skills, citing a study showing that children in the advanced orchestra score exceptionally well on spatial tests.
A financial analyst discovers that over the past forty years, years in which fashion designers favored shorter skirt hemlines were reliably followed by booming stock markets, concluding that fashion trends drive investor confidence.

Eşleşmeler

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Cevap

The correct pairings align the hospital software with reverse causality (intervention deployed where severity is high), the community garden with a third-variable flaw (socioeconomic characteristics), the violin study with self-selection bias (predisposition to a trait), and the hemline/stock market trend with spurious correlation (historical coincidence).
Each argument presented commits a specific variation of a causal fallacy. The correct pairings accurately map the unique context of each argument to the precise logical vulnerability it suffers from: reverse causality (hospital), common cause/third variable (gardens), selection bias (violin), and spurious coincidence (hemlines).

Adım Adım Çözüm

1
Analyze the causal claim in the hospital software argument.
The administrator infers that software causes mortality. The alternative explanation is that high-risk patients require advanced software. This matches the description of an intervention being selectively deployed where the outcome is severe.
To identify the specific reverse-causation vulnerability in the argument.
2
Analyze the causal claim in the community garden argument.
The planner infers that proximity to gardens causes lower stress. The alternative is that wealthy neighborhoods have both gardens and lower stress. This matches the description of socioeconomic characteristics acting as a common cause.
To identify the specific third-variable vulnerability in the argument.
3
Analyze the causal claim in the violin study argument.
The teacher infers that playing violin causes spatial reasoning. The alternative is that kids with high spatial reasoning choose to play violin. This matches the description of pre-existing traits (self-selection).
To identify the specific selection-bias vulnerability in the argument.
4
Analyze the causal claim in the hemline and stock market argument.
The analyst infers that fashion causes market booms based on historical data. The alternative is that this is purely random chance. This matches the description of historical coincidence without a plausible mechanism.
To identify the specific spurious correlation vulnerability in the argument.

Anahtar Kavram

Variations of Correlation vs. Causation Flaws (Reverse Causality, Third Variable, Selection Bias, Spurious Correlation)
Soru 214Soru →

A recent analysis of centuries-old ledger books from the maritime republic of Vespucia reveals a striking pattern: during decades when atmospheric carbon isotope ratios indicate prolonged periods of unseasonable regional warmth, the Republic's recorded expenditures on naval shipyard expansions were unusually high. The lead historian concludes that the unseasonable warmth must have caused the Republic to significantly increase its naval investment.

Which of the following, if true, most effectively exposes a flaw in the historian's reasoning by providing a valid alternative explanation for the observed correlation? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: The massive deforestation and industrial smelting required to rapidly expand the naval shipyards released vast amounts of particulate matter and greenhouse gases, directly causing the localized, unseasonable regional warmth.; Decades marked by intense solar maximums both caused the unseasonable regional warmth and disrupted the atmospheric pressure systems that foreign competitor fleets relied upon, prompting Vespucia to aggressively expand its shipyards to monopolize the sudden gap in global shipping.

Cevap

The options describing the environmental impact of shipyard expansions (demonstrating reverse causality) and the dual effects of solar maximums (demonstrating a third-variable cause).
The correct answers successfully identify classic causal reasoning flaws by providing robust alternative explanations for the observed correlation. One answer demonstrates reverse causality by suggesting the industrial activity of the shipyard expansion caused the environmental warmth. The other answer introduces a third variable, solar maximums, which independently caused both the warmth and the strategic need for shipyard expansion.

Adım Adım Çözüm

1
Analyze the core structure of the historian's argument.
Premise: There is a correlation between unseasonable warmth and shipyard expansion. Conclusion: Warmth caused the shipyard expansion.
Deconstructing the argument into premises and conclusion is essential to identifying the logical gap.
2
Identify the specific logical flaw in the reasoning.
The argument assumes that because A (warmth) and B (shipyard expansion) occurred simultaneously, A must have directly caused B. This ignores other possible relationships.
This is a classic 'correlation vs. causation' flaw.
3
Determine the criteria for correct answers based on the question stem.
Since it asks for alternative causal explanations, correct answers must show that B caused A, that a third factor C caused both A and B, or that the correlation is merely coincidental.
Applying the concept of causal alternatives filters out irrelevant distractors.
4
Evaluate the choices systematically against the established criteria.
One correct option shows that shipbuilding caused warming (reverse causality). The other correct option shows that solar maximums caused both phenomena (third factor). The incorrect options attack premises, play with numbers, or inadvertently strengthen the argument.
Rigorous elimination ensures only the options that fulfill the precise logical task are selected.

Anahtar Kavram

Correlation vs. Causation
Soru 215Soru →

An analysis of 50 mid-sized municipalities over the past decade revealed a strong statistical trend: cities that significantly increased their funding for public arts initiatives experienced a substantial decrease in their petty crime rates. Based on this data, a prominent mayor concluded that increased exposure to the arts actively reduces criminal behavior by instilling stronger moral values in citizens.

Which of the following, if true, provides a valid alternative explanation for the observed correlation that undermines the mayor's causal conclusion? Select all that apply.

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Cevap: The municipalities that increased arts funding did so because they elected reform-minded city councils that simultaneously expanded and overhauled their local police forces.; Cities that experienced a spontaneous decline in petty crime suddenly found themselves with surplus law enforcement budgets, which they subsequently redirected into public arts initiatives.; The period of increased funding for public arts initiatives perfectly coincided with a regional economic boom that drastically reduced unemployment, a primary driver of petty crime, in those specific municipalities.

Cevap

The correct options are the ones describing the reform-minded city councils, the surplus law enforcement budgets, and the regional economic boom.
The correct answers each provide a classic logical vulnerability in causal reasoning drawn from a correlation. One option introduces a third variable (reform-minded city councils) that caused both events. Another option demonstrates reverse causality (the drop in crime caused the arts funding). The third option presents an independent concurrent event (an economic boom) that acts as an alternative cause for the crime reduction. All three successfully sever the mayor's presumed direct causal link.

Adım Adım Çözüm

1
Analyze the argument's structure to isolate the premise and conclusion.
Premise: Cities with increased arts funding also saw a decrease in petty crime rates (Correlation). Conclusion: Exposure to the arts actively reduces criminal behavior (Causation).
Deconstructing the argument is necessary to pinpoint the exact causal claim that must be undermined.
2
Identify the logical flaw in the reasoning.
The mayor assumes that because arts funding and a drop in crime occurred together, the funding must have caused the drop. This ignores other possibilities such as reverse causality, third-party common causes, or coincidental external factors.
Recognizing the 'correlation vs. causation' flaw dictates what kind of evidence will serve as a valid alternative explanation.
3
Evaluate each option against the required task: finding an alternative explanation that severs the mayor's causal link.
Three options successfully provide alternative explanations: one shows a common cause (new city councils), one shows reverse causality (surplus budgets from low crime funding the arts), and one shows a concurrent alternative cause (economic boom reducing unemployment).
The question explicitly asks to select all valid alternative explanations, requiring the identification of multiple manifestations of the causal fallacy.

Anahtar Kavram

Correlation vs. Causation
Tahmini Süre:2m 0s
Soru 216Soru →

Historian: Records from the 18th century indicate that cities with a high number of public libraries also reported significantly higher rates of political unrest compared to cities with few or no public libraries. Clearly, the ideas disseminated through materials in these libraries fostered dissatisfaction with the government, thereby directly fueling political instability.

The reasoning in the historian's argument is most vulnerable to criticism on the grounds that the argument does which one of the following?

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Cevap: fails to consider that the observed correlation may be entirely explained by a separate factor that caused both the establishment of public libraries and the occurrence of political unrest.

Cevap

The argument fails to consider that the observed correlation may be entirely explained by a separate factor that caused both the establishment of public libraries and the occurrence of political unrest.
The correct answer accurately diagnoses the fundamental error in the historian's argument: jumping from a correlation (libraries and unrest existing together) to a strict causal conclusion (libraries caused the unrest). By ignoring alternative explanations, specifically that a third, unstated factor might be responsible for both phenomena, the argument's reasoning is deeply flawed.

Adım Adım Çözüm

1
Analyze the argument's structure to identify the premises and the conclusion.
Premise: Cities with many public libraries had higher rates of political unrest. Conclusion: Libraries fostered dissatisfaction and directly fueled political instability.
Separating facts from the author's interpretation is necessary to find the logical gap.
2
Identify the logical leap between the premise and the conclusion.
The author jumps from an observation of two things happening together (correlation) to the claim that one caused the other (causation).
This is a classic flaw pattern on the LSAT.
3
Formulate potential alternative explanations for the relationship.
A third variable (like a rising, educated middle class or urbanization) could cause both the building of libraries and political unrest. Alternatively, the unrest could have caused people to build libraries (reverse causation).
Anticipating the specific manifestation of the causal flaw helps in evaluating the answer choices.
4
Evaluate the answer choices against the anticipated flaw.
The correct option explicitly describes the 'third variable' or 'common cause' vulnerability in the causal reasoning.
Selecting the answer choice that precisely describes the structural error in the argument.

Anahtar Kavram

Causal Flaws: Third Variable / Common Cause
Tahmini Süre:2m 0s
Soru 217Soru →

Anthropologists analyzing the ancient civilization of Tarsia observed that historical eras characterized by the widespread cultivation of drought-resistant grain varieties consistently coincided with periods of severe economic contraction. The researchers noted that these specialized grains demanded significantly more labor to harvest than traditional crops. From this, they conclude that the transition to these drought-resistant crops drained labor from other critical sectors of Tarsian society, directly causing the observed economic contractions.

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

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Cevap: It fails to consider whether the environmental conditions prompting the adoption of specialized grains were themselves responsible for the economic downturn.

Cevap

The correct answer identifies that the argument overlooks a common cause (a third variable) for both phenomena: the environmental conditions (such as a drought) that necessitated the drought-resistant grains likely caused the economic contraction as well.
The correct answer accurately describes the classic 'third variable' or 'common cause' flaw. The anthropologists observe that X (drought-resistant grains) and Y (economic contraction) happen together, and conclude that X causes Y. However, they completely ignore the possibility of Z (a severe drought). A drought would perfectly explain why they started using drought-resistant crops, and it would also independently explain why the economy contracted. By failing to consider this underlying environmental trigger, the argument's causal leap is deeply flawed.

Adım Adım Çözüm

1
Identify the argument's premises and main conclusion.
Premise 1: Widespread use of drought-resistant grains correlates with economic contraction. Premise 2: These grains require more labor. Conclusion: The transition to these crops caused the economic contractions.
Deconstructing the argument is necessary to evaluate the logical relationship between the evidence and the claim.
2
Analyze the method of reasoning.
The author takes two correlated historical events and infers that one caused the other, using the 'labor drain' as a hypothetical mechanism to make the causal claim sound plausible.
Identifying a causal claim based on a correlation immediately highlights the most likely logical vulnerabilities.
3
Determine the structural flaw.
Whenever an author assumes causation from correlation, they overlook alternative explanations: reverse causation, coincidence, or a third common cause. The term 'drought-resistant' strongly implies an external environmental factor (a drought) was present.
Anticipating the flaw before looking at the choices prevents being tricked by sophisticated distractors.
4
Evaluate the answer choices against the identified flaw.
The correct option points out the 'third variable' flaw—that the environmental condition (drought) caused BOTH the adoption of new grains AND the economic ruin.
Matching the anticipated logical error to the abstract language used in LSAT flaw questions ensures accuracy.

Anahtar Kavram

Correlation vs. Causation (Third Variable / Common Cause)
Soru 218Soru →

An economist notes that companies offering extensive wellness programs to their employees have significantly higher profit margins than companies that do not. Based on this, the economist concludes that implementing wellness programs directly causes an increase in corporate profitability by boosting employee productivity.

Which of the following statements, if true, represent alternative explanations for the observed correlation that weaken the economist's conclusion? (Select all that apply)

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Cevap: Highly profitable companies are more likely to possess the surplus financial resources necessary to fund comprehensive employee wellness programs.; Companies in high-margin technology sectors frequently offer wellness programs as a standard industry benefit to attract scarce talent.; Companies that provide wellness programs also tend to mandate longer working hours, which independently drives up corporate revenues and profit margins.

Cevap

The correct options are those that provide reverse causation, a common cause, or an alternative independent cause for the correlation.
The correct answers highlight the classic vulnerabilities of causal reasoning on the LSAT. They weaken the argument by presenting valid alternative explanations for the correlation: the effect actually caused the purported cause (reverse causality), a third factor caused both, or a different factor entirely is responsible for the effect.

Adım Adım Çözüm

1
Identify the premises and the conclusion of the argument.
Premise: Companies with wellness programs have higher profit margins. Conclusion: Wellness programs directly cause increased profitability.
To evaluate a causal argument, you must first isolate the observed correlation and the specific causal direction asserted by the author.
2
Determine the logical flaw in the argument.
The economist assumes that a correlation implies causation, failing to consider alternative explanations for why these two phenomena co-occur.
Recognizing the 'Correlation vs. Causation' flaw allows you to anticipate the types of statements that would weaken the argument.
3
Evaluate the answer choices for alternative explanations.
Three options successfully provide alternative explanations: reverse causation (high profits cause wellness programs), a third variable (industry sector causes both), and an alternative cause (longer working hours cause the profits).
Any statement that credibly explains the correlation without relying on the economist's proposed causal mechanism will weaken the conclusion.

Anahtar Kavram

When an argument concludes that one thing causes another based solely on a correlation, the argument can be weakened by demonstrating reverse causality, a third variable that causes both, or an alternative cause.
Tahmini Süre:1m 30s
Soru 219Soru →

Below are four excerpts from public policy and academic debates. Each excerpt contains a distinct flaw involving causal reasoning. Match each excerpt to the abstract description that most accurately identifies its specific logical error.

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Öğeler

Educational Researcher: Our data reveals that school districts allocating the largest portion of their budgets to anti-truancy initiatives paradoxically experience the highest rates of unexcused student absences. Thus, these anti-truancy programs must be inadvertently alienating students and causing them to skip school.
Sociologist: A comprehensive global analysis demonstrates a strong statistical link between a nation's per capita consumption of imported luxury textiles and its citizens' average life expectancy. This suggests that access to high-quality clothing significantly extends human longevity.
Historian: Between 1850 and 1900, the population of wild horses in North America steadily declined, a period that perfectly aligns with the gradual decrease in the average size of the European aristocracy. It is clear that the dwindling supply of wild horses led to the contraction of the European noble class.
Business Analyst: Immediately after the retail chain implemented a new computerized inventory management system, their overall profit margins increased by 12% in the following quarter. The new software is clearly responsible for this boost in profitability.

Eşleşmeler

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Cevap

The Educational Researcher excerpt matches with the reverse causality description. The Sociologist excerpt matches with the third-variable common cause description. The Historian excerpt matches with the coincidental long-term trend description. The Business Analyst excerpt matches with the chronological succession (post hoc) description.
Each abstract description perfectly captures the precise mechanics of the flawed causal reasoning presented in its corresponding excerpt. The matches correctly distinguish between reverse causation (programs vs. truancy), third-variable causation (textiles vs. longevity), mere coincidence (horses vs. aristocracy), and temporal precedence (software vs. profits).

Adım Adım Çözüm

1
Analyze the Educational Researcher's argument regarding anti-truancy programs.
Identified that the argument mistakes the response to a problem for the cause of the problem.
Funding anti-truancy initiatives is a reaction to high truancy rates. The argument reverses this relationship, fitting the abstract description of overlooking the motivation for an action.
2
Analyze the Sociologist's argument regarding luxury textiles and life expectancy.
Identified a failure to account for an underlying socioeconomic factor.
Both variables (buying luxury goods and living longer) are typical byproducts of a wealthy nation. This aligns with the description of failing to consider an underlying third variable.
3
Analyze the Historian's argument regarding wild horses and European aristocracy.
Identified an absurd correlation between unrelated events.
There is no plausible logical connection between North American horses and European nobility; the correlation is purely coincidental over a shared timeline, matching the isolated long-term phenomena description.
4
Analyze the Business Analyst's argument regarding software and profit margins.
Identified a post hoc ergo propter hoc fallacy.
The conclusion relies entirely on the fact that the profit increase happened immediately after the software implementation, cleanly matching the description of concluding causality merely based on chronological precedence.

Anahtar Kavram

Distinguishing between nuanced variations of causal reasoning flaws, including reverse causality, third-variable causation, coincidental correlation, and post hoc reasoning.
Soru 220Soru →

Match each flawed argument below with the most accurate description of its specific causal reasoning error.

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Öğeler

Recent epidemiological analyses reveal that patients who regularly consume prescribed synthetic probiotics exhibit a significantly higher incidence of chronic gastrointestinal inflammation compared to those who do not. The medical board has thus issued a warning that synthetic probiotics are a catalyst for chronic digestive disorders.
A university study found that students who sleep fewer than six hours per night during the week of final exams consistently score lower on their assessments than those who sleep eight hours or more. An academic memo concluded that sleep deprivation directly impairs students' analytical abilities during these exams.
Following a sweeping initiative to replace all incandescent lighting with LED fixtures across its assembly lines, a heavy machinery manufacturer noted a 15 percent drop in employee injury rates over the next six months. Plant managers confidently reported that the improved illumination provided by the LEDs was directly responsible for the enhanced safety record.
A decadal wildlife survey in the northern boreal forests demonstrates that years characterized by a significantly expanded population of snowshoe hares are predictably followed by years with an increased population of predatory lynx. A local naturalist concluded that the influx of lynx into the ecosystem directly stimulates the snowshoe hares to breed more rapidly in order to ensure species survival.

Eşleşmeler

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Cevap

The epidemiological argument matches with reversing cause and effect; the university study matches with failing to consider a third variable; the manufacturing firm matches with assuming a chronological sequence implies causation while ignoring concurrent changes; and the ecological survey matches with contradicting the established temporal sequence.
Each argument commits a specific, distinct variation of a causal reasoning flaw. The biomedical argument reverses cause and effect, ignoring that a pre-existing condition likely necessitates the treatment. The university study ignores a common cause (like anxiety) that could independently trigger both variables. The manufacturing firm commits a post hoc fallacy, assuming a chronological sequence guarantees causation while ignoring concurrent systemic changes. Finally, the ecological survey proposes a causal timeline that contradicts its own premise, attributing a past event to a future cause.

Adım Adım Çözüm

1
Analyze the epidemiological argument regarding synthetic probiotics.
The premise establishes a correlation between a medical treatment and a medical condition, concluding the treatment causes the condition.
When an argument claims a treatment causes a disease, you must actively look for reverse causation, as patients typically seek treatments in response to already having the disease.
2
Analyze the university study argument regarding sleep deprivation.
The premise correlates lack of sleep with lower test scores, concluding that lack of sleep directly impairs ability.
When two negative phenomena occur simultaneously during a high-stress period (finals week), you must evaluate whether an unstated third variable (like lack of preparation or high anxiety) is independently causing both.
3
Analyze the manufacturing firm argument regarding LED lighting.
The argument relies entirely on a sequence of events: intervention A occurred, followed by outcome B, therefore A caused B.
This is a classic post hoc fallacy. To accurately identify the flaw, you must recognize that the author fails to rule out other alternative, concurrent changes that could have caused the outcome.
4
Analyze the ecological survey argument regarding snowshoe hares and lynx.
The premise explicitly states an influx of hares happens first, and the influx of lynx happens subsequently. The conclusion claims the lynx stimulate the hares to breed.
Because the author attributes an event from the past to a cause that occurs in the future, the flaw is distinctly a violation of chronological sequence.

Anahtar Kavram

Distinguishing between specific subtypes of correlation-to-causation fallacies, including reverse causation, third-variable flaws, post hoc reasoning, and temporal paradoxes.
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