- Sun Jan 20, 2013 12:00 am
#35410
Complete Question Explanation
Justify the Conclusion. The correct answer choice is (B)
To simplify our discussion of the reasoning involved in this stimulus, let us use the following key:
Seeing history as the working out of moral themes = MT
Holding clear and unambiguous moral beliefs = CB
Inclination to morally judge human behavior = JH
Knowledge of history = KH
The given relationships are as follows:
Premise 1: MT is unlikely unless CB. “Unless” is a necessary indicator (with the remainder of the
statement negated and sufficient), so this statement can be diagrammed as:
MT unlikely CB
In other words, if someone is not unlikely to see history as the working out of moral themes, then he
or she must hold clear and unambiguous moral beliefs.
Premise 2: JH decreases as KH increases. You should note immediately that neither of these terms
was present in the first premise and that no inferences can be drawn between relationships which do
not share terms. Technically, this relationship is bi-directional, as the presence or absence of either
term indicates something about the other term.
JH down KH up
Conclusion: As KH increases, MT decreases. Again, the correlation here should be diagrammed as
bi-directional:
KH up MT down
As mentioned previously, we have nothing with which to connect our premises and so no way to
infer a relationship between KH and D. To help identify what the correct answer choice must do to
justify this conclusion, we can rearrange the premises and infer what is missing.
First, we know that KH up is correlated with JH down. Also, by contrapositive, we know that if CB
does not happen, MT is unlikely.
CB MT unlikely
In other words, when someone does not have clear and unambiguous moral beliefs, then he or
she is unlikely to think of history as the working out of moral themes. Thus, if we can link a
decrease in one’s inclination to morally judge human behavior (JH down) with not having clear and
unambiguous moral beliefs (CB), we would have the following chain:
KH up JH down CB down MT down
Answer choice (A): “Eliciting moral disapproval” and “exemplify a moral theme” are not present in
the stimulus. In order to justify the conclusion, we need to link the terms in our answer choice with
terms from the stimulus. (A) fails to do so.
Answer choice (B): This is the correct answer choice. This answer can be diagrammed as:
JH down CB down
This relationship allows us to link the two premises together and yield the proper additive inference
about the relationship between knowledge of history and viewing history as working out moral
themes.
Answer choice (C): The terms “understand human history” and “attribute moral significance to
historical events” are not present in the stimulus. Do not let the testmakers goad you into assuming
that similar terms are interchangeable. This is almost always incorrect.
Answer choice (D): This answer can be diagrammed as:
CB up MT up
This adds a correlation to the existing relationship between moral beliefs and views of history, but
does not allow us to infer a relationship between knowledge of history and views of history. The two
premises would remain unconnected.
Answer choice (E): Objectivity is not at issue here. If this is added to the premises, we could infer
that those who are very knowledgeable about history are less objective about it and less inclined to
morally judge human behavior, but we would still be unable to conclude that they were unlikely to
view history as the working out of moral themes.
Justify the Conclusion. The correct answer choice is (B)
To simplify our discussion of the reasoning involved in this stimulus, let us use the following key:
Seeing history as the working out of moral themes = MT
Holding clear and unambiguous moral beliefs = CB
Inclination to morally judge human behavior = JH
Knowledge of history = KH
The given relationships are as follows:
Premise 1: MT is unlikely unless CB. “Unless” is a necessary indicator (with the remainder of the
statement negated and sufficient), so this statement can be diagrammed as:
MT unlikely CB
In other words, if someone is not unlikely to see history as the working out of moral themes, then he
or she must hold clear and unambiguous moral beliefs.
Premise 2: JH decreases as KH increases. You should note immediately that neither of these terms
was present in the first premise and that no inferences can be drawn between relationships which do
not share terms. Technically, this relationship is bi-directional, as the presence or absence of either
term indicates something about the other term.
JH down KH up
Conclusion: As KH increases, MT decreases. Again, the correlation here should be diagrammed as
bi-directional:
KH up MT down
As mentioned previously, we have nothing with which to connect our premises and so no way to
infer a relationship between KH and D. To help identify what the correct answer choice must do to
justify this conclusion, we can rearrange the premises and infer what is missing.
First, we know that KH up is correlated with JH down. Also, by contrapositive, we know that if CB
does not happen, MT is unlikely.
CB MT unlikely
In other words, when someone does not have clear and unambiguous moral beliefs, then he or
she is unlikely to think of history as the working out of moral themes. Thus, if we can link a
decrease in one’s inclination to morally judge human behavior (JH down) with not having clear and
unambiguous moral beliefs (CB), we would have the following chain:
KH up JH down CB down MT down
Answer choice (A): “Eliciting moral disapproval” and “exemplify a moral theme” are not present in
the stimulus. In order to justify the conclusion, we need to link the terms in our answer choice with
terms from the stimulus. (A) fails to do so.
Answer choice (B): This is the correct answer choice. This answer can be diagrammed as:
JH down CB down
This relationship allows us to link the two premises together and yield the proper additive inference
about the relationship between knowledge of history and viewing history as working out moral
themes.
Answer choice (C): The terms “understand human history” and “attribute moral significance to
historical events” are not present in the stimulus. Do not let the testmakers goad you into assuming
that similar terms are interchangeable. This is almost always incorrect.
Answer choice (D): This answer can be diagrammed as:
CB up MT up
This adds a correlation to the existing relationship between moral beliefs and views of history, but
does not allow us to infer a relationship between knowledge of history and views of history. The two
premises would remain unconnected.
Answer choice (E): Objectivity is not at issue here. If this is added to the premises, we could infer
that those who are very knowledgeable about history are less objective about it and less inclined to
morally judge human behavior, but we would still be unable to conclude that they were unlikely to
view history as the working out of moral themes.