A student has taken twelve courses and received a B in a majority of them. The student is now taking another course and will probably, given her record, receive a B in it.

Summarize Argument
The author argues that the student in question will likely get a B in their upcoming course. This is because she has received Bs in the majority of the 12 other courses she’s taken.

Notable Assumptions
The author assumes that the student receiving Bs in most of her courses makes it likely she’ll receive a B in this course. That means that the author doesn’t believe the student has improved or improved as a student, and that this course doesn’t significantly differ from the majority of her courses in any meaningful way.

A
The student previously studied alone but is receiving help from several outstanding students during the present course.
Since the student is changing her study strategy, it seems very likely her grade will improve. This seems to severely damage the author’s conclusion.
B
The twelve courses together covered a broad range of subject matter.
The student didn’t struggle or succeed in one specific area. She got Bs in virtually everything, so there’s no reason to believe this course would be any different.
C
The student previously studied in the library and continues to do so.
The student hasn’t changed this one aspect of her study habits. Thus, we can’t assume she’s improved or gotten worse.
D
The student received a B in all but one of the twelve courses.
This intensifies “majority” to “vast majority.” The student in question is decidedly a B student.
E
The current course is a continuation of one of the twelve courses in which the student received a B.
Since the student got a B in the first course, we can conclude the subject matter in the new course isn’t particularly to her favor (or not to her favor).

27 comments

When interviewing job candidates, personnel managers not only evaluate a candidate’s work experience and educational background but also inquire about hobbies. Personnel managers try to justify these inquiries by noting that the enthusiasm someone shows for a hobby may well carry over to enthusiasm for a job. But such enthusiasm may also indicate that the candidate is less concerned with work than with play. Therefore personnel managers should not inquire about a candidate’s hobbies.

Summarize Argument
The author concludes that personnel managers should not ask about job candidates’ hobbies because a candidate’s enthusiasm for a hobby might indicate that he cares more about play than work.

Identify and Describe Flaw
The author concludes that managers shouldn’t ask about candidates’ hobbies. However, she overlooks any possible benefits of asking candidates about their hobbies. For example, a candidate’s hobbies may indicate other skills and abilities and may provide managers with a more complete understanding of the candidate.

Also, even if a candidate’s enthusiasm does indicate that the candidate is less concerned with work than with play, the author never explains why this is negative. Perhaps it’s helpful for managers to learn this information in interviews.

A
A candidate’s involvement in particular hobbies may indicate a capacity to make long-term commitments.
If a candidate’s hobby shows his ability to make long-term commitments, managers might benefit from asking about hobbies to assess this. The author overlooks this potential benefit.
B
Candidates who have no hobbies may pretend that they have one when asked in an interview.
This presents another potential downside of asking candidates’ about their hobbies: the candidates might lie. Thus, (B) isn’t an example of a potential benefit of asking about hobbies that the author overlooked.
C
Inquiries about a hobby may put candidates at ease, eliciting more honest responses about important questions.
If asking candidates about hobbies leads to more honest answers, it could be helpful for managers to ask. The author overlooks this potential benefit.
D
Having certain kinds of hobbies may indicate that a candidate has good organizational skills.
Asking about a candidate’s hobbies may teach a manager something about that candidate’s organizational skills. The author overlooks this potential benefit.
E
Personnel managers may make better choices among candidates if they are not restricted from asking particular types of questions.
(E) suggests that if managers are allowed to ask about candidates’ hobbies, they may make better hiring decisions. The author overlooks this potential benefit of asking about hobbies.

35 comments

Some people believe that saying that an organization is hierarchical says everything there is to say about how that organization operates. All bureaucratically controlled organizations are hierarchical. Yet the Public Works Department, although bureaucratically controlled, operates quite differently than most other bureaucratically controlled organizations operate.

Summary

The stimulus can be diagrammed as follows:

Notable Valid Inferences

The Public Works Department is hierarchical. A company being hierarchical does not reveal everything about the nature of that company’s operations—there are differences in how hierarchical companies operate.

A
The Public Works Department operates more like a nonbureaucratically controlled organization than like a bureaucratically controlled organization.

This could be false. It could be that the Public Works Department operates differently in a manner not characteristic to nonbureaucratic or bureaucratic organizations. The stimulus does not offer enough information for us to know what “differently” means in practice.

B
Any organization that is hierarchical is bureaucratically controlled.

This could be false. We know all bureaucratically controlled organizations are hierarchical, but we cannot assume this relationship goes both ways. As shown in the diagram, we assume it is a one-way relationship.

C
From the fact that a given organization is hierarchical nothing can reliably be concluded about how that organization operates.

This could be false. There may be some information one can gather from the fact that an organization is hierarchical—maybe all hierarchical organizations share certain qualities. We know, however, that there are some qualities they do not all share.

D
Not all hierarchical organizations operate in the same way.

This must be true. We know the Public Works Department is hierarchical and it operates differently from other hierarchical organizations. Therefore, (D) must be true.

E
Whether or not an organization is bureaucratically controlled has nothing to do with how that organization operates.

This could be false. The stimulus does not suggest a company’s operations are unaffected by whether it is bureaucratically controlled or not. The stimulus only says that a company being hierarchical doesn’t tell us everything there is to know about its operations.


19 comments

In order to pressure the government of Country S to become less repressive, some legislators in Country R want to ban all exports from R to S. Companies in R that manufacture telecommunication equipment such as telephones and fax machines have argued that exports of their products should be exempted from the ban, on the grounds that it is impossible for a country to remain repressive when telecommunication equipment is widely available to the population of that country.

Summary
Telecom manufacturers in R argue that their products should be exempted from a ban on exports to S (which is meant to push S to become less repressive). In support, the manufacturers claim that when telecom equipment is widely available to a country’s population, that country cannot remain repressive.

Notable Assumptions
The manufacturers’ argument that exporting their equipment to S will help to make S less repressive requires the assumption that telecom equipment exported to S will be widely available to S’s population. Without this assumption, there would be no link between the manufacturers’ premise and their conclusion.

A
The government of S has recently increased the amount of telecommunication equipment it allows to be imported into the country.
It’s not necessary to the argument that anything has recently changed about S’s import conditions. For example, if S had always allowed lots of telecom imports, that wouldn’t undermine the argument.
B
The telecommunication equipment that would be imported into S if the exemption were to be granted would not be available solely to top government officials in S.
This avoids one scenario where telecom equipment would not be available to the population of S. In other words, this is part of the broader assumption that S’s population will actually receive the exported equipment—which is necessary to the argument.
C
A majority of the members of R’s legislature do not favor exempting telecommunication equipment from the ban on exports to Country S.
Whatever the members of R’s legislature think about this plan is totally independent of the manufacturers’ argument. In other words, this is irrelevant.
D
Of all exports that could be sent to Country S, telecommunication equipment would be the most effective in helping citizens of S oppose that country’s repressive government.
The manufacturers’ point is simply that exporting telecom equipment would help make S less repressive. It’s not necessary that it would be the most effective way to do so.
E
Without pressure from Country R, the government of S would be able to continue repressing its citizens indefinitely.
The manufacturers never claim that their plan (or any other pressure from R) is necessary to make S less repressive, only that it would be helpful. So, this isn’t necessary.

16 comments