Company president: Our consultants report that, in general, the most efficient managers have excellent time management skills. Thus, to improve productivity I recommend that we make available to our middle-level managers a seminar to train them in techniques of time management.

Summarize Argument: Phenomenon-Hypothesis
The author recommends that we make available to middle-level managers a time management training seminar in order to improve their productivity. This is based on a report by consultants that the most efficient managers have excellent time management skills.

Notable Assumptions
The author assumes that excellent time management skills is the cause of the most efficient managers’ level of efficiency. The author assumes that there isn’t some other explanation for the association between efficiency and time management skills observed in managers.

A
The consultants use the same criteria to evaluate managers’ efficiency as they do to evaluate their time management skills.
(A) suggests that the purported correlation between efficiency and time management among managers doesn’t actually measure a meaningful relationship. The consultants aren’t measuring the connection between two different qualities.
B
Successful time management is more dependent on motivation than on good technique.
This provides a reason to think a seminar training managers on time management techniques is less likely to be successful.
C
Most managers at other companies who have attended time management seminars are still unproductive.
This provides a reason to think attendance at time management seminars is less likely to have a significant impact on productivity.
D
Most managers who are already efficient do not need to improve their productivity.
The author recommends that we make a seminar available. If some managers don’t need it, they don’t have to attend. (D) doesn’t provide a reason to think the seminars might not be effective, nor does it criticize the reported association between efficiency and time management.
E
Most managers who are efficient have never attended a time management seminar.
This provides a reason to think time management training seminars are not going to be as helpful as the author believes.

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Television network executive: Some scientists have expressed concern about the numerous highly popular television programs that emphasize paranormal incidents, warning that these programs will encourage superstition and thereby impede the public’s scientific understanding. But these predictions are baseless. Throughout recorded history, dramatists have relied on ghosts and spirits to enliven their stories, and yet the scientific understanding of the populace has steadily advanced.

Summarize Argument: Counter-Position

The author concludes that programs that emphasize paranormal incidents will not impede the public’s scientific understanding. This is based on the fact that throughout history, story-tellers have told stories involving paranormal elements, but the public’s scientific understanding has steadily advanced during this time.

Identify and Describe Flaw

The author overlooks the possibility that paranormal stories have impeded (meaning, obstructed or hindered) the public’s understanding of science, even if they haven’t completely stopped advancement of that understanding. Something can still advance while being impeded.

A
It fails to consider that one phenomenon can steadily advance even when it is being impeded by another phenomenon.

The author fails to consider that the public’s understanding of science can steadily advance even when it is being impeded by paranormal stories. This is why the author’s premise does not establish that TV shows about paranormal incidents won’t impede understanding.

B
It takes for granted that if a correlation has been observed between two phenomena, they must be causally connected.

The author does not assume that correlation proves cause. The author’s conclusion does not assert cause or rely on an assumption of cause. In fact, the author asserts that one thing (paranormal stories) does not cause another thing (impeding of understanding).

C
It fails to consider that the occurrence of one phenomenon can indirectly affect the pervasiveness of another even if the former does not impede the latter.

The conclusion is that one thing does not impede another thing. Pointing out a failure to consider what could be true “even if [one thing] does not impede [another thing]” does not show why the argument is weak. Any weakness must relate to why one thing can impede another thing.

D
It fails to consider that just because one phenomenon is known to affect another, the latter does not also affect the former.

The author does not overlook the possibility that a causal relationship is also reversed. The author does not, for example, assert that paranormal stories can’t affect public understanding because public understanding has affected paranormal stories.

E
It takes for granted that the contention that one phenomenon causes another must be baseless if the latter phenomenon has persisted despite steady increases in the pervasiveness of the former.

The contention is that paranormal TV shows impede scientific understanding. The author believes this is baseless. But the author does not cite to the fact that the impeding of scientific understanding has persisted despite increases in the pervasiveness of paranormal stories.


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Columnist: Neuroscientists have found that states of profound creativity are accompanied by an increase of theta brain waves, which occur in many regions of the brain, including the hippocampus. They also found that listening to music increases theta waves dramatically. Thus, one can attain a state of profound creativity merely by listening to a tape of recorded music.

Summarize Argument: Phenomenon-Hypothesis
The author concludes that listening to music can trigger a state of profound creativity. This is because listening to music increases theta brainwaves. And increased theta brainwaves are found when someone is in a state of profound creativity.

Identify and Describe Flaw
This is the cookie-cutter flaw of assuming that correlation proves causation. The columnist observes that increased theta brainwaves are correlated with states of profound creativity. He then implicitly concludes that theta brainwaves cause a state of profound creativity. (And therefore music, by increasing theta brainwaves, can causally trigger that state.)
But this overlooks the possibility that it’s the other way around: maybe being in a state of creativity is what leads to higher theta brainwaves. Or maybe a third factor—say, waking up early in the morning—both triggers a state of profound creativity and increases theta brainwaves. If either of these were true, listening to music could increase theta brainwaves without triggering a state of profound creativity.

A
takes for granted that there is a causal connection between the hippocampus and being in a state of profound creativity
The proposed causal connection is about theta brainwaves, not any particular part of the brain. The theta brainwaves occur in “many regions of the brain” aside from the hippocampus.
B
fails to consider that music is not necessary for one to be in a state of profound creativity
The columnist doesn’t assume this, so it can’t be the flaw. The columnist is saying that music is sufficient (if you have it, you’ll get a profound creative state), not that it’s necessary (you can’t have the state without music).
C
does not rule out the possibility that listening to music by means other than a tape recording also increases theta waves
Even if this were true, it wouldn’t be a flaw in the argument. It’s perfectly possible for the columnist to also believe that listening to music in different formats also increases theta waves.
D
ignores the possibility that an increase in theta waves may not always be accompanied by a state of profound creativity
The author assumes that the correlation between theta waves and states of profound creativity means that theta waves cause states of profound creativity. But
E
provides insufficient reasons to believe that people who are not in states of profound creativity have low levels of theta brain waves
The columnist's conclusion only concerns people who are in states of profound creativity. Also, the columnist's language is relative—increased brainwaves accompany states of profound creativity. So the alternative could be moderate, rather than low, levels of brainwaves.

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The question stem reads: The editorialist's reasoning is flawed in that it fails to take into account that… This is a Flaw question.

The editorialist states that a recently passed law limits freedom of speech to silence dissenters. He then describes the claim that those ignorant of history are doomed to repeat it. In this claim, "doomed" is a necessary condition indicator. So we can rewrite the claim into lawgic: ignorant of history -> repeat history. The editorialist concludes that "If this (ignorant of history -> repeat history) is true, then those responsible for passing the laws must be ignorant of a great deal of history." In lawgic, the conclusion reads:

(ignorant of history -> repeat history) -> law passers ignorant of history

The editorialists note that in the past, silencing dissenters have tended to promote undemocratic policies and the establishment of authoritarian regimes. Let's outline the argument::

P1: A Law has been passed to silence dissenters

P2: Silencing dissenters has occurred in the past.

______________________________________________

C: (ignorant of history -> repeat history) -> law passers ignorant of history

Looking at the premises, we can infer that history has been repeated. Dissenters have been silenced in the past, and lawmakers today are trying to silence dissenters now.

P1: A Law has been passed to silence dissenters

P2: Silencing dissenters has occurred in the past.

P3: history has been repeated

______________________________________________

C: (ignorant of history -> repeat history) -> law passers ignorant of history

Finally, we can kick up the sufficient condition of the conclusion:

P1: A Law has been passed to silence dissenters

P2: Silencing dissenters has occurred in the past.

P3: history has been repeated

P4: ignorant of history -> repeat history

______________________________________________

C: law passers are ignorant of history

Remember, satisfying the necessary condition yields no information about the sufficient condition. The editorialist has used the fact that history has been repeated (P4's necessary condition) to conclude that the lawmakers are ignorant of history (P4's sufficient condition). The editorialist is affirming the consequent, a classic logical fallacy. Now that we see the error in the editorialist's reasoning let's move the answer choices.

Answer Choice (A) is irrelevant to the argument. The purpose of the law does not matter. What matters to the argument is that history is repeating itself.

Answer Choice (B) is irrelevant. If you picked (B), you likely got caught up in irrelevant parts of the stimulus, i.e., "limits freedom of speech" and "tended to promote undemocratic policies and the establishment of authoritarian regimes." But the editorialist's argument is not about what freedoms need or need not be protected.

Answer Choice (C) is actually taken into account by the argument. The stimulus says, "silencing dissenters has tended to promote… the establishment of authoritarian regimes." The fact that you can find some instances of undermining regimes is compatible with the editorialist's claim. Furthermore, what matters is that a law "silencing dissenters" is a repeat of history. Whether or not the law ends up establishing or undermining an authoritarian regime is arbitrary.

Answer Choice (D) is also irrelevant. Whether the law is good or bad has no effect on the argument.

Correct Answer Choice (E) is an illustration of our prephase. Those ignorant of history are doomed to repeat it, but it is entirely possible to be aware of history and still repeat it. Maybe these lawmakers intend to establish an authoritarian regime. Maybe not. In either case, (E) is good to go.


20 comments

Editorial: A recently passed law limits freedom of speech in order to silence dissenters. It has been said that those who are ignorant of history will repeat its patterns. If this is true, then those responsible for passing the law must be ignorant of a great deal of history. Historically, silencing dissenters has tended to promote undemocratic policies and the establishment of authoritarian regimes.

Summarize Argument
The author concludes that if the saying “those who are ignorant of history will repeat its patterns,” is true, then the people who passed a law intending to silence dissenters must be ignorant of much of history’s patterns. This is because history shows that silencing dissenters leads to authoritarianism.

Identify and Describe Flaw
The author confuses sufficient and necessary conditions. The saying is that if one is ignorant of history, then one will repeat its patterns. But this doesn’t imply that if one repeats history’s patterns, one must be ignorant of history. It’s possible that the people who passed the law are repeating history’s patterns even if they’re not ignorant. In fact, maybe they want to follow the patterns of history and are fully aware of what is likely to happen.

A
the law may have other purposes in addition to silencing dissenters
The author never assumes that the law doesn’t have other purposes. If there are other purposes, that doesn’t undermine the author’s reasoning. What matters is whether the lawmakers are aware of the historical patterns associated with silencing dissenters.
B
certain freedoms might sometimes need to be limited in order to ensure the protection of certain other freedoms
The author never takes a position on whether silencing dissenters is necessary or unnecessary. The issue is whether the lawmakers are aware of the historical patterns associated with silencing dissenters.
C
some historical accounts report that legal restrictions on freedom of speech have occasionally undermined the establishment of authoritarian regimes
The author acknowledges that silencing dissenters “has tended” to promote authoriatarian regimes. That allows for some cases where silencing dissenters has weakened authoritarian regimes.
D
many good laws have been passed by people who are largely ignorant of history
Whether the laws are “good” is irrelevant. The issue whether the lawmakers are aware of the historical patterns associated with silencing dissenters.
E
even those who are not ignorant of history may repeat its patterns
If people who are not ignorant of history can repeat its patterns, then the mere fact that the lawmakers are repeating its patterns does not establish that they are ignorant of those patterns. They might be aware of those patterns.

The question stem reads: The editorialist's reasoning is flawed in that it fails to take into account that… This is a Flaw question.

The editorialist states that a recently passed law limits freedom of speech to silence dissenters. He then describes the claim that those ignorant of history are doomed to repeat it. In this claim, "doomed" is a necessary condition indicator. So we can rewrite the claim into lawgic: ignorant of history -> repeat history. The editorialist concludes that "If this (ignorant of history -> repeat history) is true, then those responsible for passing the laws must be ignorant of a great deal of history." In lawgic, the conclusion reads:

(ignorant of history -> repeat history) -> law passers ignorant of history

The editorialists note that in the past, silencing dissenters have tended to promote undemocratic policies and the establishment of authoritarian regimes. Let's outline the argument::

P1: A Law has been passed to silence dissenters

P2: Silencing dissenters has occurred in the past.

______________________________________________

C: (ignorant of history -> repeat history) -> law passers ignorant of history

Looking at the premises, we can infer that history has been repeated. Dissenters have been silenced in the past, and lawmakers today are trying to silence dissenters now.

P1: A Law has been passed to silence dissenters

P2: Silencing dissenters has occurred in the past.

P3: history has been repeated

______________________________________________

C: (ignorant of history -> repeat history) -> law passers ignorant of history

Finally, we can kick up the sufficient condition of the conclusion:

P1: A Law has been passed to silence dissenters

P2: Silencing dissenters has occurred in the past.

P3: history has been repeated

P4: ignorant of history -> repeat history

______________________________________________

C: law passers are ignorant of history

Remember, satisfying the necessary condition yields no information about the sufficient condition. The editorialist has used the fact that history has been repeated (P4's necessary condition) to conclude that the lawmakers are ignorant of history (P4's sufficient condition). The editorialist is affirming the consequent, a classic logical fallacy. Now that we see the error in the editorialist's reasoning let's move the answer choices.

Answer Choice (A) is irrelevant to the argument. The purpose of the law does not matter. What matters to the argument is that history is repeating itself.

Answer Choice (B) is irrelevant. If you picked (B), you likely got caught up in irrelevant parts of the stimulus, i.e., "limits freedom of speech" and "tended to promote undemocratic policies and the establishment of authoritarian regimes." But the editorialist's argument is not about what freedoms need or need not be protected.

Answer Choice (C) is actually taken into account by the argument. The stimulus says, "silencing dissenters has tended to promote… the establishment of authoritarian regimes." The fact that you can find some instances of undermining regimes is compatible with the editorialist's claim. Furthermore, what matters is that a law "silencing dissenters" is a repeat of history. Whether or not the law ends up establishing or undermining an authoritarian regime is arbitrary.

Answer Choice (D) is also irrelevant. Whether the law is good or bad has no effect on the argument.

Correct Answer Choice (E) is an illustration of our prephase. Those ignorant of history are doomed to repeat it, but it is entirely possible to be aware of history and still repeat it. Maybe these lawmakers intend to establish an authoritarian regime. Maybe not. In either case, (E) is good to go.


21 comments

The question stem reads: The Conclusion follows logically if which one of the following is assumed? This is a Sufficient Assumption question.

Love is complicated in the real world, which is no different than love in the LSAT. It's possible to love someone and not be loved back. Unfortunately, love is not a biconditional. My previous relationships confirm that. While reading this stimulus, it is essential to see which "way" the love is going. Are you loving or being loved? The stimulus is short and conditional heavy, so let's break these down as we go. The stimulus starts with "whoever is kind is loved by somebody or another." This translates into the lawgic:

kind -> loved by someone

Next, the stimulus claims that "whoever loves anyone is happy." This translated into the lawgic:

Love anyone -> happy

The argument concludes, "Whoever is kind is happy." Translated:

Kind -> happy

Let's organize this argument into:

P1: Kind -> loved by someone

P2: Love anyone -> happy

______________________________________________

C: Kind -> happy

We can kick up the sufficient condition so we now have:

P3: Kind

P1: Kind -> loved by someone

P2: Love anyone -> happy

______________________________________________

C: Happy

We want to get to "happy," and P2 will get us there if we can satisfy "love anyone." Let's make that our necessary condition: (__) -> love anyone. Now we need to find a sufficient condition that will be satisfied by the argument. Notice how P3 satisfies the sufficient condition of P1, so we can infer that "loved by someone" occurs. Let's make "loved by someone" the sufficient condition of conditional: loved by someone -> love anyone. Now we have a valid argument:

P3: Kind

P1: Kind -> loved by someone

SA: Loved by someone -> love anyone

P2: Love anyone -> happy

______________________________________________

C: Happy

P3 will trigger P1, P1 triggers our SA, and our SA will trigger P2, which brings us to the desired conclusion of "happy." Happy is exactly what we are because we just solved this four-star problem. Let's move to the answer choices.

Answer Choice (A) is incorrect. If you picked (A), you likely misread P1 and thought that being kind meant you loved someone. You can rule out (A) quickly by seeing we are missing the concept of "loved by."

Answer Choice (B) is also out. You can rule out (B) because we are missing the concept of "loved by."

Answer Choice (C) is also out. We want to get to "happy," but (C) has "happy" in sufficient condition; we can rule (C) out.

Correct Answer Choice (D) is the contrapositive of our prephase. (D) translate to:

Loves no one -> loved by no one

We take the contrapositive:

/(loved by no one) -> /(loves no one)

Not being loved by no one means you are loved by someone. Not loving no one means you love someone. So we get our SA: "Loved by someone -> love anyone."

Answer Choice (E) is the most popular wrong answer. If you picked (E), you likely thought that (E) would let you infer "loves everyone." "Loves everyone" would satisfy "loves anyone" and deliver you to "happy." The problem with (E) is that it has "Kind" in the necessary. Remember, satisfying the necessary condition has no effect on the sufficient condition.


15 comments