Consultant: The dramatic improvements in productivity achieved during the Industrial Revolution resulted in large part from standardization of processes and procedures coupled with centralization of planning and decision making. Yet, in recent years, many already productive companies have further improved their productivity by giving individual employees greater influence in decision making and in how they do their work.

"Surprising" Phenomenon

How have many already productive companies further improved their productivity by implementing less centralized planning and decisionmaking, even though more centralization has been known to lead to huge increases in productivity?

Objective

The correct answer should suggest a difference between the already productive companies and the average company that could explain why the already productive companies can increase their productivity more through less centralization.

A
Most companies still try to improve productivity mainly through greater standardization and centralization of decision making.

What most companies do doesn’t explain why the already productive companies we’re concerned with in the stimulus can increase productivity through less centralization.

B
Increased productivity is not the only benefit of giving individual employees greater control over their work; job satisfaction increases as well.

This might provide another reason companies may want less centralization, but doesn’t help explain how companies can become more productive through les centralization.

C
Most of the increases in industrial productivity that have occurred in recent years have been due to the introduction of advanced technology like industrial robots.

Even if most increase in productivity has occurred through technology, we still know some companies have increased productivity through less centralization. This answer doesn’t explain how this happened.

D
The innovations of the Industrial Revolution are only now being applied in those companies in which individual employees have traditionally been entirely in control of how they do their work.

This answer tells us what’s happening in companies in which individual employees already have complete individual control. This doesn’t relate to the already productive companies we’re concerned with in the stimulus, which are giving their employees more and more control.

E
Increases in productivity in highly productive companies depend on management’s broad application of innovative ideas solicited from individual employees about their work.

Once a company is already highly productive, further productivity comes from individual employees’ ideas. This could be why less centralization (and greater autonomy for employees) is how already productive companies become more productive.


25 comments

Professor: The most important function of epic poetry is to transmit the values by which a group of people is to live. This transmission is accomplished not by an explicit discussion of those values, but rather by their embodiment in heroic figures, who are presented as role models. Imitating those role models gives meaning and direction to the lives of those who hear the poems.

Summary

Epic poetry’s most important function is the transmission of the values by which a group of people is to live.

In epic poetry, values are not transmitted by explicit discussion.

In epic poetry, values are transmitted by their embodiment in heroic figures, who are presented as role models.

If people imitate the role models in epic poems, such people gain meaning and direction in their lives.

Notable Valid Inferences

Epic poetry accomplishes its most important function by embodying values in heroic figures, who are presented as role models.

A
An important function of poetry is to give meaning and direction to the lives of those who hear or read it.

Could be false. The stimulus only discusses one important function of poetry: the transmission of values. This might lead to people gaining life meaning and direction if they do decide to imitate the characters, but that’s not the explicit function as the stimulus describes it.

B
Epic poems accomplish their most important function by presenting heroic figures as role models.

Must be true. The stimulus explicitly states that the most important function of epic poems is to transmit values, and that the poems do so by presenting heroic figures as role models.

C
When values are represented in poetry, they are rarely if ever set forth explicitly.

Could be false. We know that epic poems do not transmit values via explicit discussion, but it’s possible that other kinds of poems do!

D
For many groups of people, heroic figures serve as role models embodying the values by which those people are to live.

Could be false. The stimulus does not say that many groups of people view heroic figures as role models; rather, it says that if a person does see a heroic figure as a role model and imitates that figure, that person could gain meaning and direction in their life.

E
Only epic poetry presents heroic figures as role models that, if imitated, give meaning and direction to the lives of those who hear it.

Could be false. The stimulus only discusses epic poetry. It does not claim that other kinds of poetry or art do not utilize the same techniques described here.


43 comments

Some heartburn-medication advertisements imply that unrelieved heartburn is likely to cause esophageal cancer. This is simply false. The fact is that only about 5 percent of people with severe heartburn have a condition called Barrett’s esophagus, in which cells similar to those in the stomach’s lining develop in the lower esophagus. Only these people have an increased risk of developing cancer because of heartburn.

Summarize Argument: Counter-Position
Some advertising for heartburn medications is false because unrelieved heartburn is not likely to cause esophageal cancer. In reality, only about 5 percent of people with severe heartburn have a condition that raises the risk of cancer. So, only about 5 percent of people—those with this condition—are at a higher risk of developing cancer due to heartburn.

Identify Conclusion
The conclusion is the author’s contention that some heartburn medications are falsely advertised because it is not true that unrelieved heartburn is likely to cause esophageal cancer.

A
Only those people with Barrett’s esophagus can suffer an increased risk of developing cancer from heartburn.
This is a premise. The stimulus notes that only 5% of people—those with Barrett's esophagus—have a higher risk of cancer to support the conclusion that heartburn isn’t "likely" to increase the risk of cancer. If only 5% of people are at risk, it’s unlikely for the average person.
B
An increase in the risk of esophageal cancer arises from cells similar to those in the stomach’s lining developing in the lower esophagus.
This is a premise. It provides background on a condition called Barrett's esophagus, which the author mentions to support her conclusion. Since readers may be unfamiliar with Barrett’s esophagus, this claim gives them the information needed to follow the author’s argument.
C
Unrelieved heartburn is not likely to cause esophageal cancer.
This accurately states the main conclusion. The author argues that some heartburn-medication ads are untrue because unrelieved heartburn is not likely to cause esophageal cancer. Since only 5% of people are at risk, the average person is not "likely" to have an increased risk.
D
Some heartburn-medication advertisements imply that unrelieved heartburn is likely to cause esophageal cancer.
This is context. The claim that some heartburn-medication ads imply unrelieved heartburn is likely to cause esophageal cancer helps explain the author's argument, which concludes that this advertising is false since heartburn only increases cancer risk in about 5% of people.
E
The dangers touted by heartburn-medication advertisements will affect relatively few of the people who see those advertisements.
The stimulus doesn’t make this claim. A premise states that only 5% of people will have a higher risk of esophageal cancer from heartburn but doesn’t suggest that only 5% of people who see the ads have this condition. People with the condition may be more likely to see the ads.

9 comments

If grain prices double then the average price of a loaf of bread will rise between 10 and 15 percent, whereas the price of grain-fed beef will come close to doubling.

"Surprising" Phenomenon
If grain prices double, why would the average price of a loaf of bread rise only 10 to 15 percent, even though the price of grain-fed beef would almost double?

Objective
The correct answer will suggest a difference between grain-fed beef and a loaf of bread that could make changes in grain price have less of an effect on the price of a loaf of bread than on the price of grain-fed beef.

A
Farmers engaged in very large-scale cattle production generally try to reduce the labor costs involved in the production and sale of beef.
The labor costs involved in beef don’t have a clear relationship to grain prices. We wouldn’t expect reduced labor costs to change the impact of grain prices on the price of grain-fed beef. In any case, we want to explain the strangely low impact grain price has on bread price.
B
The wholesale price per pound of beef is approximately ten times the wholesale price per pound of bread.
The price of beef compared to the price of bread is irrelevant, because we’re trying to explain the disparity in percentage change in price. Why, if grain price doubles, does bread price only increase 10 to 15% when beef price almost doubles?
C
The labor and marketing costs in producing and selling bread represent most of its cost, but the cost of feeding cattle represents most of the cost of producing beef.
Most of the cost of bread isn’t related to grain. But most of the cost of grain-fed beef is related to grain. This could explain why bread price is less affected by changes in grain price.
D
Only an insignificantly small proportion of the beef sold in retail markets is produced from cattle fed on grass rather than grain.
The comparison in the stimulus involves price changes in bread and grain-fed beef. The fact grain-fed beef isn’t very common compared to other beef doesn’t impact this comparison.
E
The vast majority of retail grocery outlets purchase the bread they sell from small independent bakers but purchase the meat they sell from large wholesale processing operations.
Do we have any reason to think being sourced by an independent baker vs. a large wholesale processing operation would impact the degree to which changes in grain price would affect bread or beef price? No.

8 comments

CEO: We have been falsely criticized for not being an environmentally responsible corporation. Environmentally responsible corporations are corporations that do all they can to pollute less. Our current production methods pollute significantly less than our old methods did, and there currently are no methods that do not produce any pollution.

Summarize Argument
The CEO concludes the corporation has been falsely criticized for not being environmentally responsible. She supports this with the following premises:

(1) Environmentally responsible corporations do all they can to pollute less.

(2) The corporation’s new production methods pollute less than the old ones.

(3) No methods exist that produce no pollution at all.

Identify and Describe Flaw
The CEO assumes that the corporation is doing all that it can to pollute less. But just because their new methods are better than their old ones, doesn’t necessarily mean that the corporation is doing all that it can. What if there are other methods that would allow it to pollute even less than it does now? In that case, the corporation isn’t doing all that it can and so it isn’t environmentally responsible.

A
takes for granted that production methods that do not produce pollution cannot be developed
It doesn't matter whether production methods that do not produce pollution can be developed in the future. Because there are currently no methods that do not produce pollution, the corporation might be doing all that it can now, even if better methods are developed later.
B
fails to take into account the possibility that different causes can have similar effects
The CEO’s argument doesn't rely on causal reasoning. Instead, the CEO assumes that her corporation is doing all it can to reduce pollution.
C
generalizes too hastily from the inapplicability of a specific criticism to the inapplicability of a class of criticisms
The CEO only addresses the specific criticism that her corporation is not environmentally responsible. She argues that this criticism is false, but never generalizes about any other criticisms.
D
takes for granted that because the company has attempted to reduce the amount of pollution produced, they must have succeeded
The CEO doesn’t assume that the corporation has succeeded in reducing the amount of pollution it produces, she explicitly states that it has. She says, “Our current production methods pollute significantly less than our old methods did.” So the corporation did succeed.
E
ignores the possibility that there are currently production methods that would allow the corporation to produce less pollution than it does now
To be environmentally responsible, the corporation must be doing all that it can to pollute less. If there are production methods that would allow the corporation to produce less pollution than it does now, then it isn’t doing all it can and it isn’t environmentally responsible.

12 comments

Depression is a serious problem for residents of nursing homes. However, a recent study has found that residents who developed personal bonds with pets had significantly lower rates of depression than did residents who did not develop personal bonds with pets.

Summary

Depression is a serious problem in nursing homes. However, a recent study found that residents who formed bonds with pets had much lower rates of depression than those who didn't.

Strongly Supported Conclusions

Encouraging nursing home residents to have pets could potentially help to lower the rate of depression in nursing homes.

Depression in nursing homes might in part stem from residents’ lack of companionship.

A
Nursing-home residents are more subject to depression than any other individuals.

Unsupported. The stimulus tells us that depression is a serious problem for residents of nursing homes. However, it does not compare rates of depression among nursing home residents to rates of depression among anyone else.

B
The best method for helping a nursing-home resident to overcome depression is to provide access to a pet.

Unsupported. Although forming bonds with pets significantly lowers rates of depression among nursing home residents, we do not know that this is the best way for residents to overcome depression.

C
High rates of depression among nursing-home residents may result at least in part from a lack of companionship.

Strongly supported. Residents who formed bonds with pets had much lower rates of depression than those who didn’t, and bonds with pets are a kind of companionship. So, rates of depression may result in part from a lack of companionship.

D
Animal companionship is essential for psychological well-being.

Unsupported. We do not know that animal companionship is essential for psychological well-being simply because animal companionship could help alleviate depression in some circumstances.

E
Allowing free access to pets in nursing homes would eliminate problems relating to depression.

Unsupported. Allowing free access to pets could alleviate rates of depression in nursing homes, but we have no way to know whether it would entirely eliminate all problems relating to depression.


5 comments