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Question 1
Backease is a specially designed cushion that relaxes tense back muscles by massaging the user's back. A survey showed that 70 percent of the people who used a Backease cushion for recently developed back pain experienced either a significant reduction or complete elimination of their back pain after two weeks of daily use. Clearly, therefore, anybody who has recently developed back pain and does not promptly use a Backease cushion risks needless suffering.
The argument is most vulnerable to criticism on grounds that it
Your Answer: Option(s)
Correct Answer: Option(s) E
Rationale
groups together those people who experienced a complete elimination of back pain with those who experienced only a significant reduction.
The argument fails to differentiate between two distinct outcomes: complete elimination of back pain and significant reduction. By combining these results, it presents a misleadingly positive view of the Backease cushion's effectiveness, potentially overstating its benefits for those seeking total relief.
A) overlooks the possibility that people who develop back pain and do not use a Backease cushion can readily find an effective alternative
This criticism does not address the effectiveness of the Backease cushion itself. The argument focuses on the results of those who used it, making this point irrelevant to the claim about Backease's necessity for alleviating back pain.
B) overlooks the possibility that some of the people surveyed use a Backease cushion for reasons other than the alleviation of back pain, such as helping them to relax
While this raises a valid concern about the motivations for using the cushion, it does not undermine the survey's findings regarding back pain relief. The primary focus of the argument is on the effectiveness of the cushion for the intended purpose, which remains supported by the data.
C) overlooks the possibility that among the 30 percent who did not experience a significant reduction or complete elimination of their back pain, some experienced a moderate improvement
This option highlights a limitation in the data but does not challenge the argument's main assertion. The argument's strength comes from the reported outcomes, and acknowledging moderate improvements does not detract from the fact that some users achieved significant results.
D) relies solely on personal reports rather than on reasoning
This criticism suggests a lack of robust evidence but does not directly attack the core issue of conflating outcomes. While personal reports may be subjective, the argument still provides a statistical analysis based on user experiences.
Conclusion
The argument's main flaw lies in its failure to distinguish between complete relief and significant reduction of back pain among users of the Backease cushion. By grouping these outcomes, it misrepresents the effectiveness of the product, which may lead to unrealistic expectations for potential users suffering from back pain. Addressing this oversight would enhance the clarity and accuracy of the argument presented.
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Question 2
Investigators tracked vital statistics of a colony of feral (wild) cats, searching for correlations between physical characteristics of the females, such as length and weight, and the number of kittens those females gave birth to. On average, the shorter, slightly heavier females tended to have more kittens. Investigators concluded that if this trend continues, in two hundred years the average female cat in the colony would be approximately 2 millimeters shorter and 70 grams heavier.
Which of the following is an assumption on which the investigators' conclusion relies?
Your Answer: Option(s)
Correct Answer: Option(s) C
Rationale
Kittens born to the shorter, slightly heavier mothers in the colony are not less likely than average to survive to adulthood.
The investigators' conclusion about the future size and weight of female cats is based on the assumption that the offspring of these females will survive at the same rate as the general population. If kittens from shorter, heavier mothers were less likely to survive, the trend observed might not hold, affecting the overall reproductive success of those females.
A) Birth and death rates in the colony will not change significantly over the next two hundred years.
This assumption relates to overall population dynamics but does not directly address the relationship between maternal characteristics and kitten survival. While stable birth and death rates may influence population growth, the conclusion specifically hinges on the survival rates of kittens from the observed females, making this assumption less central to the conclusion.
B) Female cats in the colony that are shorter than average also tend to be slightly heavier than average.
While this assumption could support the trend observed, it does not directly impact the conclusion drawn about future averages. The investigators are primarily concerned with the kittens' survival rates rather than the correlation of size and weight among the females, which is already established in their findings.
D) Average length and weight of male cats in the colony will not change over the next two hundred years.
The average size of male cats is irrelevant to the reproductive success of female cats and their offspring. The conclusion focuses solely on female characteristics and their impact on kitten survival, making this assumption unrelated to the conclusion.
E) In the colony, female cats that have more kittens than average also live longer than average.
This assumption could provide context for the overall health and longevity of the female cats, but it does not directly influence the kittens' survival from those specific mothers. The conclusion is dependent on the survival of kittens rather than the longevity of the mothers, rendering this assumption peripheral.
Conclusion
The conclusion drawn by the investigators relies on the assumption that the kittens born to shorter, heavier mothers will survive to adulthood at rates comparable to the population average. This is critical for the projected evolution of the average female cat's characteristics over two hundred years. The other choices, while related to aspects of the cat colony's dynamics, do not directly support the logic behind the investigators' conclusions regarding future averages.
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Question 3
Editor: Articles in Gardening Magazine often spur sales of the plants they describe, particularly among people new to gardening. Accordingly, we will no longer publish articles or accept advertisements praising the beauty of trilliums and other rare wildflowers. Most such plants sold to gardeners are difficult to propagate under cultivation, so plant sellers often collect them in the wild. We are adopting this policy to help reduce the plundering of native plant populations.
Which of the following, if true, most strongly supports a prediction that Gardening Magazine's new policy will have its intended effect?
Your Answer: Option(s)
Correct Answer: Option(s) B
Rationale
Other gardening periodicals will likely follow Gardening Magazine's lead by ceasing to publish articles and accept advertisements promoting the cultivation of rare wildflowers.
This choice supports the prediction that Gardening Magazine's new policy will effectively reduce the demand for rare wildflowers by indicating that a broader movement among gardening publications will occur, further limiting exposure and interest in these plants.
A) When people new to gardening buy plants, they often fail to take adequate care of the plants that they buy and become discouraged from buying those varieties again.
This statement describes a potential outcome of new gardeners' experiences but does not directly support the prediction about the reduction in demand for rare wildflowers. It focuses more on individual gardener behavior rather than the broader implications of the magazine's policy.
C) The yearly demand for rare wildflowers regularly exceeds the number of such plants that can be collected in the wild by plant sellers.
While this statement highlights a supply-demand imbalance, it does not support the effectiveness of Gardening Magazine's policy. If demand exceeds supply, simply decreasing visibility through articles will not necessarily lead to a reduction in demand; it may remain high regardless of the magazine's influence.
D) People who are new to gardening are more likely to read other periodicals on the subject of plants and gardening than Gardening Magazine, which contains many articles that appeal to expert gardeners.
This option suggests that Gardening Magazine has limited reach among new gardeners, which might undermine the effectiveness of its policy. If new gardeners are not heavily influenced by this magazine, the intended reduction in demand might not happen as predicted.
E) A number of plant sellers are currently working with botanists to improve techniques for propagating trilliums and other rare wildflowers.
This statement indicates a potential positive development for rare wildflowers but does not support the immediate impact of Gardening Magazine's new policy. Instead, it suggests that efforts to cultivate these plants may continue regardless of the magazine's articles, possibly sustaining or even increasing interest in them.
Conclusion
The effectiveness of Gardening Magazine's new policy hinges on the collective actions of the gardening community. By predicting that other periodicals will also stop promoting rare wildflowers, choice B strengthens the likelihood that the demand for these plants will decrease, thereby fulfilling the magazine's goal of protecting native plant populations. The other options either lack direct relevance to the policy's impact or suggest scenarios that could counteract its intended effect.
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Question 4
Before the widespread acceptance of the efficiency-wage theory, scholars believed that increased worker productivity benefited workers in two ways: higher real wages and/or reduced working hours. According to the efficiency-wage theory, however, the causation can go the other way as well: productivity depends on the real wage paid by the firm. Productivity gains from higher wages result primarily from greater incentives to work coupled with diminished incentives to shirk, and secondarily from employers' ability to raise productivity by using higher wages to reduce turnover, improve morale, and attract superior applicants. Just as an efficiently higher wage may lower per-unit labor costs, so might judiciously shortened workweeks. Most workweek reductions, such as France's 1998 decision to implement a 35-hour workweek, are meant to ameliorate unemployment. While this is a worthy objective, the efficiency-week theory predicts far greater benefits. The theory asserts that an optimal number of hours worked per week will increase the productivity of the labor force for reasons akin to those argued by the efficiency-wage theorists. Moreover, an efficient week can have substantial social and economic benefits: workers will have more time to spend with family, as well as more time to consume a greater volume of goods.
According to the passage, each of the following is a way in which higher wages can affect productivity EXCEPT:
Your Answer: Option(s)
Correct Answer: Option(s) D
Rationale
The atmosphere of the workplace becomes more cooperative.
The passage discusses how higher wages can lead to increased productivity through various mechanisms such as reduced turnover, improved morale, and better incentives to work. However, it does not specifically mention that higher wages directly create a more cooperative atmosphere in the workplace.
A) Workers are encouraged to work harder.
The passage indicates that higher wages provide greater incentives for workers to exert more effort, thereby enhancing productivity. This aligns with the idea that financial rewards can motivate employees to increase their work performance.
B) The number of workers who need to be replaced is reduced.
Higher wages contribute to lower employee turnover, as indicated in the passage. When workers are paid more, they are less likely to leave their jobs, which means fewer replacements are necessary, directly impacting productivity positively.
C) The morale of workers is raised.
The passage notes that higher wages can improve worker morale, which is a crucial aspect of productivity. Enhanced morale typically leads to a more engaged workforce, thereby positively influencing output levels.
D) The atmosphere of the workplace becomes more cooperative.
While improving morale can foster a better workplace environment, the passage does not explicitly state that higher wages lead to a more cooperative atmosphere. This aspect is not identified as a direct effect of wage increases on productivity, making it the exception among the choices provided.
Conclusion
The efficiency-wage theory highlights the multifaceted benefits of higher wages on productivity, primarily through worker incentives, reduced turnover, and enhanced morale. However, the idea that wages create a more cooperative atmosphere is not supported by the passage, distinguishing it from the other effects that directly enhance productivity. Understanding these nuances is essential for grasping the implications of wage structures in the workplace.
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Question 5
Before the widespread acceptance of the efficiency-wage theory, scholars believed that increased worker productivity benefited workers in two ways: higher real wages and/or reduced working hours. According to the efficiency-wage theory, however, the causation can go the other way as well: productivity depends on the real wage paid by the firm. Productivity gains from higher wages result primarily from greater incentives to work coupled with diminished incentives to shirk, and secondarily from employers' ability to raise productivity by using higher wages to reduce turnover, improve morale, and attract superior applicants. Just as an efficiently higher wage may lower per-unit labor costs, so might judiciously shortened workweeks. Most workweek reductions, such as France's 1998 decision to implement a 35-hour workweek, are meant to ameliorate unemployment. While this is a worthy objective, the efficiency-week theory predicts far greater benefits. The theory asserts that an optimal number of hours worked per week will increase the productivity of the labor force for reasons akin to those argued by the efficiency-wage theorists. Moreover, an efficient week can have substantial social and economic benefits: workers will have more time to spend with family, as well as more time to consume a greater volume of goods.
It can be inferred that the author of the passage would probably agree with which of the following statements about France's 1998 decision to implement a 35-hour workweek?
Your Answer: Option(s)
Correct Answer: Option(s) C
Rationale
The decision was not made primarily with the view toward taking full advantage of all the effects that a workweek reduction can have.
The author suggests that while the 35-hour workweek aimed to reduce unemployment, it overlooks the broader productivity benefits that could arise from such a reduction, as indicated by the efficiency-wage theory.
A) The decision was unusual among workweek reductions in that it was designed primarily to ameliorate unemployment.
This choice implies that the focus on unemployment is what sets this decision apart from others. However, the passage does not indicate that this focus is unique, as it discusses workweek reductions broadly and suggests that they often aim to address unemployment.
B) While the decision was motivated by a worthy objective, that objective is an extremely difficult one to realize.
The passage acknowledges the objective of reducing unemployment as worthy but does not specifically claim that achieving this goal is extremely difficult. Instead, it emphasizes the potential for greater productivity benefits.
D) The rationale underlying the decision reflects mistaken assumptions about how workers typically respond to workweek reductions.
The passage critiques the decision's rationale not for being based on mistaken assumptions but for failing to consider the full range of positive outcomes that could result from reduced work hours, as supported by the efficiency-wage theory.
E) The decision was based on an overestimation of the dangers of unemployment.
While the passage discusses unemployment, it does not assert that the decision-makers overestimated its dangers. Instead, it critiques the limited view on the advantages of workweek reductions without suggesting an overestimation of unemployment risks.
Conclusion
The author infers that France's 1998 decision to implement a 35-hour workweek was limited in scope, primarily targeting unemployment rather than leveraging the comprehensive productivity benefits outlined by the efficiency-wage theory. This perspective highlights the potential for greater economic and social advantages that can arise from a well-considered reduction in work hours, beyond merely addressing unemployment.
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