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12 Jun 2026, 08:29
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
64% (01:54) correct
36%
(02:00)
wrong
based on 324
sessions
History
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Time
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Not Attempted Yet
Psychologist: We measured the "cognitive plasticity," or the willingness to accept new ideas, of a group of people of both genders and of all ages. The first-born children in the study consistently exhibited less cognitive plasticity than did their siblings. It is reasonable to think that those who are open to new ideas will be adventurous in other ways. Hence, our study suggests that siblings of first-born children will tend to be more adventurous than will the first-borns.
Which one of the following, if true, most strengthens the psychologist's argument?
(A) Some of the great creative geniuses in history were first-born children.
(B) In most cases, the more younger siblings one has, the greater one's cognitive plasticity.
(C) Other studies have shown a correlation between cognitive plasticity and the willingness to take risks.
(D) A study of business executives shows that several industry leaders have older siblings.
(E) Most of the participants in the study had characterized themselves as more adaptable than other people.
Which one of the following, if true, most strengthens the psychologist's argument?
(A) Some of the great creative geniuses in history were first-born children.
(B) In most cases, the more younger siblings one has, the greater one's cognitive plasticity.
(C) Other studies have shown a correlation between cognitive plasticity and the willingness to take risks.
(D) A study of business executives shows that several industry leaders have older siblings.
(E) Most of the participants in the study had characterized themselves as more adaptable than other people.
12 Jun 2026, 11:26
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Psychologist: We measured the "cognitive plasticity," or the willingness to accept new ideas, of a group of people of both genders and of all ages. The first-born children in the study consistently exhibited less cognitive plasticity than did their siblings. It is reasonable to think that those who are open to new ideas will be adventurous in other ways. Hence, our study suggests that siblings of first-born children will tend to be more adventurous than will the first-borns.
Which one of the following, if true, most strengthens the psychologist's argument?
The argument moves from “siblings have more cognitive plasticity” to “siblings are more adventurous.” The missing link is that cognitive plasticity is actually connected to adventurousness or risk-taking.
(A) Some of the great creative geniuses in history were first-born children.
This weakens or is irrelevant. It does not connect cognitive plasticity with adventurousness.
(B) In most cases, the more younger siblings one has, the greater one's cognitive plasticity.
This may support a relationship between birth order and cognitive plasticity, but the passage already gives evidence that first-borns have less cognitive plasticity than their siblings. It does not strengthen the move from cognitive plasticity to adventurousness.
(C) Other studies have shown a correlation between cognitive plasticity and the willingness to take risks.
This is correct. Willingness to take risks is closely related to being adventurous. So this strengthens the claim that people with more cognitive plasticity are likely to be more adventurous.
(D) A study of business executives shows that several industry leaders have older siblings.
This is too vague. Having older siblings does not directly show greater adventurousness, and “several” is weak.
(E) Most of the participants in the study had characterized themselves as more adaptable than other people.
This does not strengthen the argument. Self-characterization as adaptable does not connect first-born status, cognitive plasticity, and adventurousness.
Answer: (C)
Which one of the following, if true, most strengthens the psychologist's argument?
The argument moves from “siblings have more cognitive plasticity” to “siblings are more adventurous.” The missing link is that cognitive plasticity is actually connected to adventurousness or risk-taking.
(A) Some of the great creative geniuses in history were first-born children.
This weakens or is irrelevant. It does not connect cognitive plasticity with adventurousness.
(B) In most cases, the more younger siblings one has, the greater one's cognitive plasticity.
This may support a relationship between birth order and cognitive plasticity, but the passage already gives evidence that first-borns have less cognitive plasticity than their siblings. It does not strengthen the move from cognitive plasticity to adventurousness.
(C) Other studies have shown a correlation between cognitive plasticity and the willingness to take risks.
This is correct. Willingness to take risks is closely related to being adventurous. So this strengthens the claim that people with more cognitive plasticity are likely to be more adventurous.
(D) A study of business executives shows that several industry leaders have older siblings.
This is too vague. Having older siblings does not directly show greater adventurousness, and “several” is weak.
(E) Most of the participants in the study had characterized themselves as more adaptable than other people.
This does not strengthen the argument. Self-characterization as adaptable does not connect first-born status, cognitive plasticity, and adventurousness.
Answer: (C)
13 Jun 2026, 11:57
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c) Other studies have shown a correlation between cognitive plasticity and the willingness to take risks.
But is it a positive or negative correlation? I choose C finally because none of the other options made sense, but had to assume its positive correlation.
But is it a positive or negative correlation? I choose C finally because none of the other options made sense, but had to assume its positive correlation.
