All practice questions

Archaeologist: Many excavators assume that the absence of monumental stone architecture at late Neolithic settlements indicates a lack of complex social hierarchy. However, this assumption is mistaken. In dense, resource-rich riverine settlements, centralized leadership frequently directed collective labor toward perishable timber palisades and communal irrigation canals rather than enduring stone monuments. Consequently, sophisticated hierarchical organization could easily exist without leaving durable architectural ruins. Hence, excavators should not use the presence or absence of stone monuments as a reliable measure of social complexity in these communities.

Which one of the following most accurately expresses the main conclusion of the archaeologist's argument?

Plant Physiologist: Whenever an alpine coniferous forest experiences severe drought stress during the early growing season, the concentration of abscisic acid in the foliage of those conifers rises significantly. Foliar chemical assays conducted on mature spruce stands across the northern mountain range this spring revealed elevated concentrations of abscisic acid. Therefore, these northern spruce stands must have endured severe drought stress during this spring's early growing season.

The reasoning in the plant physiologist's argument is flawed because the argument

City officials have introduced a municipal subsidy for independent bookstores, contingent on the stores hosting free weekly community events. Critics argue the subsidy will financially harm these businesses, as the grant amount is significantly smaller than the staffing costs required to host such events. However, this concern is unfounded. A recent comprehensive survey revealed that independent bookstores that already host regular community events report 40 percent higher annual revenues than those that do not. Thus, participating in this subsidy program will ultimately improve the financial health of the bookstores.

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

Paleoclimatologist: The abrupt transition to a warmer global climate that marked the end of the Younger Dryas period was not triggered by an increase in solar irradiance. Ice core samples clearly reveal that solar output remained relatively stable during this transition. Furthermore, the warming cannot be attributed to a sudden release of methane from ocean floors, because the isotopic signature of atmospheric carbon from that era lacks the specific markers exclusively associated with marine methane. Therefore, since external solar forcing and marine emissions are invalidated by the geological record, the rapid warming must have been initiated by a reorganization of global ocean circulation patterns.

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

Astrophysicist: The highly elliptical orbit of the exoplanet Zephyr-7 must be the result of a past collision with a massive celestial body. The only other plausible explanations for such an orbit in this type of star system are the gravitational influence of a hidden companion star or a gradual planetary migration from the outer system. However, decades of observation have confirmed the absence of any companion star in the system. Furthermore, Zephyr-7's atmosphere lacks the volatile gases that are inevitably retained by planets undergoing gradual migration from the outer system.

Which of the following most accurately describes the method of reasoning used in the astrophysicist's argument?

Under the new environmental directives, any regional municipality that enacts a comprehensive water conservation protocol must either increase its baseline utility rates or secure a federal sustainability grant. A municipality is eligible to secure a federal sustainability grant only if it demonstrates a verifiable reduction in agricultural runoff. However, municipalities situated in the historically drought-prone Arid Basin region are strictly prohibited by state mandate from increasing their baseline utility rates. The municipality of Oakhaven, which is situated in the Arid Basin region, has recently enacted a comprehensive water conservation protocol.

Which of the following must be true on the basis of the statements above?

The university's symphony orchestra is world-renowned and critically acclaimed for its brilliant performances. Therefore, it must be true that every individual musician in the university's symphony orchestra is a world-renowned and critically acclaimed musician.

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

Art Historian: A successful restoration of a Renaissance fresco requires the use of historically accurate pigments. The recent restoration of the Da Vinci piece in the local chapel utilized pigments precisely matched to the 15th-century originals. Therefore, the restoration of the chapel's fresco will undoubtedly be considered a success.

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

Retail Analyst: To combat declining profits, several bookstore chains introduced gourmet cafes and seating areas. Consequently, the average time customers spend in these stores has increased significantly. However, during the same period, overall book sales revenue at these chains has continued to decrease. Therefore, the introduction of cafes and seating has failed to help stimulate book sales.

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

A comprehensive analysis of e-commerce behavior revealed that individuals utilizing virtual reality (VR) retail platforms make 40 percent more impulse purchases on average than those shopping exclusively via traditional mobile interfaces. From this observation, consumer psychologists deduce that the highly immersive nature of VR inherently degrades a shopper's self-regulation. Accordingly, they forecast that an industry-wide shift toward VR commerce will trigger a drastic escalation in impulsive buying across the general public.

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

Media Analyst: A popular streaming platform recently introduced a "skip credits" button. Data shows that subscribers who frequently click this button watch significantly fewer episodes per viewing session on average than subscribers who let the credits play out. Clearly, the physical act of interacting with the interface breaks the viewer’s narrative immersion, thereby prompting them to end their viewing session earlier.

Which of the following, if true, most strongly supports the media analyst's conclusion?

Neuroscientist: Some philosophers argue, based on recent brain imaging studies, that human free will is an illusion. They claim our choices are entirely determined by subconscious neural processes that occur before we are consciously aware of making a decision. But these philosophers are incorrect. Human beings do indeed possess genuine free will, because the capacity to make truly autonomous choices independent of deterministic antecedent neural conditions is a fundamental attribute of the human mind.

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

Maritime Archaeologist: The shipwreck of the Aurelia, a 19th-century merchant vessel, was recently located just outside the harbor of Port Caelum. The wreck contains a massive cargo of untreated timber. Historical logs confirm that Port Caelum was a major center for furniture manufacturing, which required vast amounts of untreated timber, during that era. Consequently, the Aurelia must have been arriving at Port Caelum to supply the local furniture industry when it foundered.

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

Economist: Throughout the twentieth century, whenever a major manufacturing sector in our country was rendered obsolete by technological advancement, the resulting localized unemployment was consistently resolved within a decade. In each instance, the very innovations that drove the obsolescence spawned secondary industries that required the exact skill sets of the displaced workers, thereby offsetting the initial job losses. Consequently, the upcoming transition to autonomous, AI-driven logistics networks will not result in long-term structural unemployment. Although truck drivers and warehouse operators will be displaced, the AI revolution will inevitably generate new sectors that will quickly absorb these workers.

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

Below are four distinct logical arguments (Left) and four highly abstract premises (Right). Match each argument to the single premise that provides the most robust logical strengthening by identifying and patching a critical gap in the argument's reasoning.

Archaeologist: Excavations at the ancient settlement of Kourion revealed that immediately following a severe, decades-long drought, nearly every household installed large ceramic vats. These vats are of a specific design historically used for dyeing fabrics. Clearly, to survive the devastating loss of agricultural revenue caused by the drought, Kourion's residents transitioned to a large-scale export industry centered on dyed textiles.

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

A recent software update was installed on all company computers. The IT department verified that the update significantly increased the computers' processing speeds, allowing them to execute commands much faster than before. However, in the week following the update, employees reported that it took them much longer to complete their standard daily tasks on these computers.

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

A recent dietary survey found that individuals who regularly consume fermented foods, such as yogurt and kimchi, report significantly lower levels of daily stress than those who rarely eat such foods. Based on this correlation, nutrition researchers concluded that the specific probiotics prevalent in fermented foods actively reduce the body's physiological stress response.

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

Historian: The newly discovered manuscript claiming to be the lost journal of Emperor Valerian is clearly a modern forgery. The text makes numerous references to complex military tactics that were completely unknown during Valerian's era. We can be certain that these tactical descriptions do not reflect actual historical events of the time, because they appear in a manuscript that is decidedly not genuine.

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

Six months ago, the developers of a fitness application introduced a "daily streak" feature. This feature awards a digital badge for every consecutive day a user logs a workout of at least 30 minutes. Among users who have been consistently active on the application since before the update, the vast majority report being highly motivated by the new feature and have significantly increased the number of days per week they exercise. Surprisingly, however, the average total number of minutes these users spend exercising each week has decreased over the last six months.

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