Practice Test 4 - LSAT Logical Reasoning

20 questions. Answer them in any order, then submit to see your score and every explanation.

Which one of the following assumptions permits the conclusion above to be properly drawn?
The two speakers are committed to disagreeing about which of the following?
A school principal argues that replacing printed textbooks with tablets will improve student performance. In a nearby district, after tablets were introduced, average science scores rose modestly the next semester. The principal reasons that tablets make it easier for students to access interactive practice and immediate feedback, which should strengthen understanding. Thus, the principal concludes that adopting tablets at this school will raise science scores. The argument depends heavily on whether the score increase in the nearby district was actually caused by the tablets rather than by some other change that occurred at the same time. Which one of the following would be most useful to know in evaluating the argument?
Speaker 1: Lowering speed limits will reduce accidents in urban areas. Speaker 2: Accidents are more influenced by driver behavior than speed limits. The speakers disagree about which one of the following?
The reasoning above is flawed for which of the following reasons?
A restaurant manager claims that the cafe should stop serving imported strawberries. The manager notes that the cafe can advertise a dessert as "locally sourced" only if every ingredient in that dessert is locally sourced. The manager also notes that the cafe's strawberry tart contains imported strawberries. So, the manager concludes that the cafe cannot advertise the strawberry tart as locally sourced, and therefore should stop serving imported strawberries. The argument relies on an assumption that links the inability to advertise one item with a policy change about ingredients. Which one of the following, if assumed, allows the conclusion of the argument to be properly drawn?
A tech company reports that the average time its customer-support agents spend on each phone call decreased after the company introduced a new troubleshooting script. Yet customer reviews posted during the same period show an increase in complaints that callers are being transferred multiple times before their issues are resolved. The company did not change the number of agents on staff, and it did not add new product lines during that period. Both the call-time metric and the reviews are said to reflect the month immediately following the script's introduction. Which one of the following, if true, most helps to resolve the apparent discrepancy in the information above?
Chef: Our restaurant should switch to a fixed-price menu. It reduces food waste because we can plan portions, and it speeds service. Diners also get to try dishes they would not order individually. Regular Customer: Fixed price forces people to pay for items they do not want, and it hurts those with dietary restrictions. Waste reduction is good, but you can plan better without removing choice. Faster service means little if customers feel excluded. The point at issue between the two speakers is whether…
A professor claims that allowing laptops in class harms learning. She notes that students who used laptops in her lecture scored lower on the final exam than students who did not. She also points out that many laptop users were seen browsing social media during class. Therefore, banning laptops will raise exam scores in that course. The statement that many laptop users were seen browsing social media during class plays which one of the following roles in the argument?
The argument above depends on which one of the following assumptions?
A coach argued: Our team's injuries spiked during the month when we skipped warm-ups to save time. The warm-up routine requires no special equipment and takes under ten minutes. When a brief, low-cost preventive measure reduces the likelihood of harm during an activity, it should be mandatory for participants in that activity. So warm-ups should be required at every practice, even on days when we are short on time. The reasoning above most closely conforms to which one of the following principles?
The principle of reciprocity dictates that acts of kindness or generosity should be returned in kind. This principle encourages social cohesion and mutual support within communities. Which one of the following situations most closely conforms to the principle above?
A financial advisor says that whenever interest rates drop, people refinance their mortgages, and when many people refinance, banks' fee revenue increases. The advisor notes that a certain bank's fee revenue increased last quarter. Therefore, the advisor concludes that interest rates must have dropped. Since rate changes are outside the bank's control, the advisor concludes that the bank's executives should not take credit for the increased fee revenue. The pattern of reasoning above is most similar to that in which one of the following?
Which of the following, if true, most helps to resolve the discrepancy?
An energy utility reports that households using smart thermostats reduced their average electricity consumption compared with households without smart thermostats. Yet in a pilot program, giving smart thermostats to a group of households did not reduce that group's electricity consumption over the next three months. The utility confirms the devices were installed correctly and that electricity prices did not change during the pilot. Weather during the pilot was typical for the season. These facts seem difficult to reconcile. Which one of the following, if true, most helps to resolve the apparent discrepancy?
A community garden coordinator argues that installing a rainwater collection system increased the garden's crop yields. She notes that after the system was installed, the garden harvested more tomatoes and peppers than in the previous summer. She also points out that the system made it easier to water plots during dry weeks, and volunteers said the soil stayed moist longer. Therefore, she concludes that rainwater collection systems generally increase yields in community gardens and recommends that the city fund similar systems for every community garden in town. Which one of the following, if true, most strengthens the argument?
A city council member argues that the proposed noise ordinance should be adopted. The member notes that, in the three neighborhoods where similar ordinances were adopted last year, residents reported higher satisfaction with their quality of life. Those neighborhoods also had fewer noise complaints filed with the city. Since the ordinance is the only major change those neighborhoods made regarding noise, the council member concludes that adopting the ordinance citywide will increase residents' quality-of-life satisfaction. The argument assumes that what produced the improvement in those neighborhoods will do so elsewhere under relevantly similar conditions. The reasoning above most closely conforms to which one of the following principles?
The role of the statement "The Riverside Festival has been held every spring for twenty years." is to:
A city inspector argues that the Riverside Bridge is unsafe. The inspector notes that the bridge's support cables show corrosion, and that whenever a bridge's support cables are corroded, the bridge must be closed unless the cables have been reinforced within the past year. The inspector also notes that Riverside Bridge has not had its cables reinforced within the past year. Therefore, the inspector concludes that Riverside Bridge must be closed. The inspector's reasoning assumes a principle connecting cable corrosion and closure requirements. Which one of the following, if assumed, allows the conclusion to be properly drawn?
Which of the following, if true, most helps to resolve the paradox?

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