All practice questions

Ethicist: Any autonomous vehicle control architecture that satisfies the strict safety standard must incorporate redundant sensor fail-safes. Most navigation suites evaluated by the transport board incorporate redundant sensor fail-safes. Therefore, most navigation suites evaluated by the transport board satisfy the strict safety standard.

Which one of the following arguments exhibits a flawed pattern of reasoning most similar to that exhibited in the ethicist's argument?

Consider the following dialogue between two cognitive scientists:

Scientist A: Universal grammar theorists maintain that the rapid acquisition of complex syntax by young children demonstrates that grammatical principles are innately encoded in the human genome.

Scientist B: That conclusion is unwarranted. Generalized neural networks lacking any preprogrammed grammatical rules routinely deduce intricate syntactic hierarchies solely from statistical patterns in training text. Furthermore, linguistic corpora show that young children receive extensive exposure to rich statistical regularities during early language exposure.

Match each excerpt from the dialogue with the precise argumentative role it serves in Scientist B's rebuttal.

In analyzing the reception of philosophical pragmatism in early twentieth-century legal realism, contemporary legal historians often isolate the pragmatist dismissal of formal logic as the primary catalyst for the realist movement's skepticism toward judicial deduction. This standard account, however, obscures a more profound methodological debt. While it is true that leading realists echoed the pragmatist disdain for treating legal concepts as immutable axioms, their most radical departure from classical formalism relied on the pragmatist theory of meaning. For pragmatists like Peirce and Dewey, the meaning of any concept is synonymous with its practical consequences. When realists applied this maxim to legal rights, asserting that a 'right' is nothing more than a prediction of how a court will act, they were not merely challenging the application of legal rules; they were obliterating the metaphysical status of the rules themselves. If a rule's existence is entirely tethered to its enforcement, then unadjudicated legal norms—those existing purely in statute but consistently ignored by judges—are rendered conceptually hollow. This ontological shift, far more than a simple aversion to syllogistic reasoning, enabled the realists to reconceptualize the judge not as a discoverer of pre-existing law, but as the active architect of legal reality.

Based on the passage, which of the following statements about a formally enacted statute that courts have consistently refused to enforce would most likely be endorsed by an early twentieth-century legal realist?

Valeria: The new directive mandating that all municipal employees commute via public transit is inherently unjust. A municipal policy is just only if it distributes its logistical burdens equally among all those directly affected. This directive disproportionately burdens employees living in suburban areas, where transit infrastructure is sparse.

Darius: I concede that the directive places a heavier logistical burden on suburban employees. However, justice in municipal governance does not demand the equal distribution of burdens among employees. Instead, a policy is just provided that its overall benefit to the city's residents outweighs the total logistical burdens it imposes. Thus, the directive is not unjust.

The dialogue provides the most support for the claim that Valeria and Darius disagree over the truth of which one of the following statements?

Historian: Any medieval fortress that successfully withstood a prolonged siege must have been situated on elevated terrain and equipped with an internal water supply. The recently excavated Dunhollow Keep was constructed on a steep, rocky promontory and contains a massive, well-preserved internal cistern system. Therefore, Dunhollow Keep undoubtedly withstood at least one prolonged siege during its active history.

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

Human Resources Director: Six months ago, our company replaced its open-plan office layout with private cubicles in an effort to boost employee productivity. Recent observational data reveals that employees are currently spending 30 percent less time engaging in casual conversations in the office corridors than they did before the renovation. Clearly, the transition to private cubicles has successfully increased overall worker productivity by reducing social distractions.

Which one of the following, if true, most seriously weakens the human resources director's argument?

Any soil treatment designed to maximize crop yield must contain high levels of nitrogen. However, no organic fertilizer contains high levels of nitrogen. Therefore, no organic fertilizer is designed to maximize crop yield.

Which one of the following arguments is most similar in its logical features to the argument above?

A long-term study of commercial vineyards found that every vineyard that successfully eliminated powdery mildew over the last decade had implemented a high-density canopy management system. The study also showed that among the vineyards utilizing high-density canopy management, only those that simultaneously applied sulfur-based bio-fungicides experienced a measurable increase in overall grape yield. Furthermore, several vineyards applied sulfur-based bio-fungicides without implementing high-density canopy management; while these vineyards saw a measurable increase in overall grape yield, they failed to eliminate powdery mildew.

Statement: Based on the study, it is most strongly supported that the application of sulfur-based bio-fungicides is a sufficient condition for a vineyard to experience a measurable increase in overall grape yield.

Public Health Official: In our city, individuals who regularly engage in community gardening experience noticeably lower rates of stress-related illnesses compared to individuals who do not. This clearly demonstrates that the practice of community gardening directly reduces a person's vulnerability to stress-related conditions.

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

Nutritionist: Residents of the mountainous region of Vargia consume an unusually high amount of the local root vegetable kalian, and they also boast the lowest rates of heart disease in the country. To combat rising rates of heart disease nationwide, the government should subsidize the cultivation of kalian and promote its consumption among the general population.

Which one of the following, if true, most weakens the nutritionist's argument?

Read the following passage carefully.

For decades, the standard historiography of early twentieth-century anthropology has treated the introduction of the camera as a mere technological acceleration of the discipline’s foundational imperative: the objective documentation of 'vanishing' cultures. According to this prevailing narrative, the camera functioned as an unproblematic extension of the ethnographer’s gaze, capturing unmediated empirical data that bolstered the scientific legitimacy of the field. However, this consensus fundamentally misapprehends the disruptive impact of vernacular photography—casual, non-professional image-making—on the methodological confidence of the era's anthropologists.

By examining the proliferation of cheap, accessible cameras in the 1910s and 1920s, it becomes evident that photography did not merely record the anthropological encounter; it fundamentally altered its power dynamics. When subjects began to encounter the camera not solely as an imposing instrument of the foreign researcher, but as a familiar, everyday device, their behavior before the lens transformed. Rather than serving as passive recipients of the ethnographer's documenting gaze, individuals increasingly began to curate their own visual representations. They adopted specific postures, incorporated modern props, and engaged in subtle acts of self-fashioning that defied the anthropologists’ demands for 'authentic' and 'untainted' representations of primitive life.

This shift provoked a profound, though largely unacknowledged, methodological crisis within the discipline. Field notes from prominent anthropologists of the period frequently express deep frustration with subjects who 'refused to look the part' or who playfully subverted the solemnity of the ethnographic endeavor. Yet, instead of recognizing this performativity as a crucial dimension of cultural adaptation and modernity, many researchers systematically excluded these 'contaminated' images from their published monographs, preferring to construct a sterilized visual record that aligned with their theoretical presuppositions.

Consequently, the true historical significance of vernacular photography in this context lies not in what it documented, but in what it destabilized. By forcing anthropologists to confront the agency and self-awareness of their subjects, the camera inadvertently exposed the subjective, co-authored nature of ethnographic knowledge. To properly understand the evolution of anthropological methodology, historians must abandon the fiction of the camera as a neutral arbiter of truth and instead analyze the photographic encounter as a contested site of negotiation, resistance, and mutual performance.

Based on the passage, which of the following accurately describe the author's primary rhetorical purposes? Select all that apply.

The methodological entrenchment of "model organisms" in contemporary molecular biology is largely justified by the principle of evolutionary conservation—the postulate that foundational cellular mechanisms remain invariant across divergent taxa. This standardization undoubtedly facilitates immense logistical benefits, fostering a highly cohesive epistemic community capable of frictionless data integration. Yet, as several philosophers of science observe, this paradigm exacts a subtle but profound theoretical cost. By inextricably linking institutional infrastructure and funding to a narrow consortium of standardized species, the discipline systematically marginalizes the investigation of "orphan" traits—ecologically vital physiological adaptations that are highly derived and lineage-specific. More critically, the infrastructural hegemony of model organisms engenders a form of epistemic closure. Because the vast majority of empirical data generated is constrained by the biological parameters of these specific organisms, the resulting scientific corpus inevitably corroborates the initial postulate of universal conservation. Consequently, the assumption that model organisms are globally representative is insulated from robust falsification, as the very architecture of contemporary biological research precludes the systemic accumulation of anomalous data that might challenge the universality of the mechanisms under study.

Based on the passage, which of the following can be most reasonably inferred regarding the "epistemic closure" within contemporary molecular biology?

Anthropologist: The recently discovered Makuri manuscripts, dated to the 12th century, contain numerous loanwords from the coastal Zandian dialect. Because inland Makuri villages were separated from the coast by the treacherous High Ridge mountains, historians previously believed there was no interaction between these groups before the 15th century. However, the presence of these loanwords proves that an extensive trade network must have connected these two groups by the 12th century.

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

Medical Researcher: A recent observational study found that individuals who drink green tea on a daily basis have a significantly lower incidence of heart disease compared to those who rarely or never drink it. Green tea is uniquely rich in a specific antioxidant compound known as EGCG. Based on these findings, we can conclude that the consumption of EGCG actively helps to prevent the development of heart disease.

Which of the following, if true, most strongly supports the medical researcher's argument?

For each of the arguments below, identify the assumption that strictly guarantees its conclusion. Pair each logical argument (left) with its corresponding sufficient assumption (right).

Read the following argument, then evaluate the statement below as True or False.

Dietician: Many people believe that eating small meals throughout the day boosts metabolism and leads to weight loss. However, a comprehensive five-year study demonstrated that individuals eating six small meals a day lost no more weight than those eating three standard meals a day. Therefore, the frequency of meals does not significantly affect weight loss.

Statement: The dietician's argument proceeds by questioning the motives of those who advocate for eating small meals throughout the day.

Sociologist: Traditional economic models assume that individuals make charitable donations primarily to maximize the overall utility of the beneficiaries. Critics of this model point out that donors frequently contribute to highly visible, prestigious charities rather than those with the highest measurable impact per dollar. These critics conclude that such charitable giving is driven entirely by a desire for social status. This conclusion is unwarranted. The critics fail to consider that donors might genuinely believe that prestigious organizations, by virtue of their prominence, possess a unique capacity to leverage funds effectively on a macroeconomic scale.

Which one of the following most accurately describes the method of reasoning employed by the sociologist?

Read the following argument carefully. Match each excerpt from the argument to its correct structural role.

Argument:
Some scholars contend that the ancient Minoan civilization collapsed primarily due to a massive volcanic eruption on the island of Thera. However, archaeological evidence indicates that the Thera eruption occurred at least a century before the widespread destruction of Minoan palaces. Consequently, the volcanic eruption could not have been the direct cause of the Minoan collapse. Instead, historical records of the era increasingly describe widespread naval conflicts and invasions from mainland powers. Thus, the Minoan civilization most likely fell due to foreign conquest.

Business Analyst: Some executives argue that strictly monitoring employee internet usage increases productivity by eliminating distractions. However, recent data shows that companies with the strictest monitoring policies actually have lower output per employee than those with flexible policies. This is likely because intense monitoring creates a high-stress environment that reduces overall employee morale and creative problem-solving, which are crucial for our industry's output.

Which one of the following most accurately describes the method of reasoning used in the business analyst's argument?

A cybersecurity firm's incident response protocol is governed by several conditional rules. To establish a valid deductive chain proving that 'If an anomaly is detected in the network, then the CEO must be notified,' arrange the following protocol rules in their correct logical sequence from the initial sufficient trigger to the final necessary outcome.