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 Administrator
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#32456
Complete Question Explanation

Must Be True. The correct answer choice is (D)

The length of this stimulus is daunting. However, the content is a very manageable fact set that funnels you down to a clear prephrase.

The author discusses hypnosis, and the word choice foreshadows the author’s doubts about the truth of claims that hypnosis can increase a person’s power of recall. We are told that a recent study “illuminates the supposed connection between hypnosis and the increased power of recall.”

In the study, test subjects listened to a long piece of instrumental music with which they were unfamiliar. Then subjects were then placed under hypnosis. While under hypnosis, half of the subjects were asked to recall parts of the music they had heard. The other half was asked to recall parts of “the film they had just viewed.” Despite the fact that they had not just viewed a film, these subjects were as “equally confident and detailed in their movie recollections” as were the other subjects in their descriptions of the music they had actually heard.

The question stem identifies this is as a Must Be True question. While we do not know whether the subjects’ descriptions of the music piece were accurate, we know the descriptions of the movie were inaccurate, since those people had not just seen a movie. We can infer that for the subjects who “recalled” details of the movie they had not actually seen, hypnosis did not increase their recall of actual facts, but rather suggested a false memory.

Answer choice (A): This answer choice goes too far. We can infer from the stimulus only that the claims regarding the connection between hypnosis and the power of recall appear to be overstated.

Answer choice (B): This is a tempting answer choice, because we know that half of the subjects “recalled” a false memory. However, we do not know whether the other half of the subjects, who were asked to recall details about unfamiliar music they had just heard, did so accurately. It may be the case that hypnosis does increase recall, even though those under hypnosis are also susceptible to suggestion and the planting of false memories.

Answer choice (C): As with answer choice (B), while we know false memories were reported by half of the subjects, we do not know whether the other half, who were asked about the music, reported false memories.

Answer choice (D): This is the correct answer choice, because it is a very restrained statement of the inference described above. Although we do not know about the accuracy of the music related memories, we know that the details about the “movie” recalled by half of the test subjects depended on the suggestion provided by the researchers.

Answer choice (E): Although the stimulus dealt with both visual and auditory memory, the visual memory portion was not about memory at all, but rather the susceptibility of those under hypnosis to the power of suggestion.
 c-erv
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#30495
Hello,

I'm having trouble seeing how D is the right answer for this problem. Especially how "hypnosis depends to at least some extend on suggestion" falls from the passage above.

I was drawn to answer choices A and C, and eliminated C because I thought "inevitably results in false memories" was too strong of a language to follow from the passage. A still appears to be the right answer.

Thanks
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 Jonathan Evans
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#30546
C-erv,

I understand your difficulty; however, if you are to choose (A) you must show affirmative evidence to support its claim in the stimulus. You correctly eliminated (C) because "inevitably" is extreme and unsupported. However, the statement that "many of the claims" are overstated is also unsupported. You have evidence in the passage that perhaps one claim about the connection between hypnosis and increased power of recall may be overstated, but as you may note from my description, you cannot even infer conclusively that this claim is overstated. The evidence from this one study is insufficient.

Instead, continue to focus on the strength of language in answer choice (D): depends at least to some extent

Here we qualify the strength of the inference, making it dramatically easier to support. Now you must determine what this "suggestion" is. The suggestions in the stimulus were the requests to describe either a piece of music actually heard or a film that had not been seen. Part of your success working through these stimuli will rely in part on the accurate correlation of terms that refer to one another.

I hope this helps!
 akanshalsat
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#43428
I'm confused as to how the answer is D... You are saying that the hypnosis didnt necessarily work, therefore B would be correct. Also where in the stimulus does it say the movie scenes were not described accurately? I'm lost.
 Adam Tyson
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#43642
I think you may be missing a crucial piece of information, akanshalsat: the movie scenes were not described accurately because nobody had actually seen a movie! The people who confidently described a movie that they had NOT just seen in great detail demonstrate that under hypnosis, you might give false answers based solely on a suggestion ("tell me about the film you just viewed"). It's not that the hypnosis didn't work, because all the subjects were hypnotized and nobody has suggested that they were not actually hypnotized. It's about the fact that they gave information about something that had not, in fact, happened.

My prephrase here was "answers given under hypnosis may not be reliable." Answer D is the best match for that.

Check that stimulus again, and you will see the key phrase "despite their not having just seen a film." See if that suggests the right answer to you!
 lanereuden
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#67854
Administrator wrote:Complete Question Explanation

Must Be True. The correct answer choice is (D)

The length of this stimulus is daunting. However, the content is a very manageable fact set that funnels you down to a clear prephrase.

The author discusses hypnosis, and the word choice foreshadows the author’s doubts about the truth of claims that hypnosis can increase a person’s power of recall. We are told that a recent study “illuminates the supposed connection between hypnosis and the increased power of recall.”

In the study, test subjects listened to a long piece of instrumental music with which they were unfamiliar. Then subjects were then placed under hypnosis. While under hypnosis, half of the subjects were asked to recall parts of the music they had heard. The other half was asked to recall parts of “the film they had just viewed.” Despite the fact that they had not just viewed a film, these subjects were as “equally confident and detailed in their movie recollections” as were the other subjects in their descriptions of the music they had actually heard.

The question stem identifies this is as a Must Be True question. While we do not know whether the subjects’ descriptions of the music piece were accurate, we know the descriptions of the movie were inaccurate, since those people had not just seen a movie. We can infer that for the subjects who “recalled” details of the movie they had not actually seen, hypnosis did not increase their recall of actual facts, but rather suggested a false memory.
Answer choice (B): This is a tempting answer choice, because we know that half of the subjects “recalled” a false memory. However, we do not know whether the other half of the subjects, who were asked to recall details about unfamiliar music they had just heard, did so accurately. It may be the case that hypnosis does increase recall, even though those under hypnosis are also susceptible to suggestion and the planting of false memories.

Answer choice (E): Although the stimulus dealt with both visual and auditory memory, the visual memory portion was not about memory at all, but rather the susceptibility of those under hypnosis to the power of suggestion.
So basically you are saying that we do not have sufficient evidence to elect B as the right answer? That is, simply because one half of the experiment is no good/influenced to an extent, does not mean that the other half is also invalid.
This is similar to question 3 of this test, and the same section thereof, in which we cannot elect E as the right answer because E does not afford sufficient evidence of being a flaw? In that case, alcohol is good to an extent, but may be bad to a different extent, but nonetheless, this is not sufficient evidence to overturn the fact that it is beneficial.
 JulesC
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#71136
Hello,

For this question I understand why answer D is a reasonable inference coming from the group that began to recall things from a film they had not seen. But does this answer also apply to the group that recalled music? Because I'm not exactly sure if suggestion was necessary for that group. Please let me know.

Thanks,

Jules
 James Finch
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#71362
Hi Jules,

The group asked about the music is the control group in this experiment, as they would expected to recall information about the musical piece confidently. The experimental group is the one asked about the movie, which one might expect would lead to confusion or at least an inability to remember any details, since they didn't actually watch a movie. This would indicate that suggestion has an effect on memories of previously hypnotized people, but we don't know how this could have affected the control group. This would require further experimentation and more information about the details were remembered by that group.

Hope this clears things up!
 catatom
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#77936
I understand why it is not answer choice C now. Recalling events under hypnosis could result in false memories but it does not "inevitably result in" false memories because we only know that half of the subjects reported false memories. We don't know if the other half reported false memories or not so we can't say that false memories are a inevitable result of recalling events under hypnosis.
 catatom
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#77977
I understand why it is not answer choice C now. Recalling events under hypnosis could result in false memories but it does not "inevitably result in" false memories because we only know that half of the subjects reported false memories. We don't know if the other half reported false memories or not so we can't say that false memories are an inevitable result of recalling events under hypnosis. But now that I think about it again this experiment shows that it is an inevitable result for some or half of the subjects so false memories would be an inevitable result for half of the subjects. Now, I'm really confused.

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