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I think this is a high-quality question and I agree with explanation.
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I think this is a poor-quality question and the explanation isn't clear enough, please elaborate.
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I think this is a poor-quality question and the explanation isn't clear enough, please elaborate.
­


Sorry about that. However, I believe this is a great and enginus question. It makes a lot of sense to me (at least). 

If you are given an object of Red color and you see it as green. 
Then when you pick a pencil, paint, crayon to draw it, you would pick up a red crayon and draw it in Red, not green color. So it would not be possible to diagnose a person with this condition by asking them to draw. 
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I think this is a poor-quality question and I don't agree with the explanation. I may not have realized something. But since it is only mentioned that the child perceives red as green and green as yellow, and not vice versa, I could not see how it could be assumed that way. So I marked E, finding it better compared to the rest. Am I right in thinking this way?
­
Sorry for missing your question back in December. 
I don't think there is any vice versa involved. Option B says that the experiment would not work because if someone sees Green instead of a Red object, when they see a red rose as green, they would also see red crayon as green, so they would pick up a red crayon and draw the color correctly. Pointing out a massive flaw in the passage. 
 ­
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­The passage clearly states that the child drew a green rose with yellow leaves. So how come we can say that the child must have drawn a red rose with green leaves and select option B as the correct answer?
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Yes, you're correct the child did draw a green rose with yellow leaves, but Look at the question stem states choose an answer choice that indicates flaw. By selecting that answer, you're questioning the conclusion you wrote in your first sentence. So, if a colourshift syndrome child did see colours like a normal child, then the question is, did they make the right assumption, putting that child must be one of those with colourshift syndrome.

I hope I was able to explain this scenario. Happy to have your thought here.



sleEZy
­The passage clearly states that the child drew a green rose with yellow leaves. So how come we can say that the child must have drawn a red rose with green leaves and select option B as the correct answer?
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I will try to improve this explanation a bit. I see folks struggling with the question. It really comes down to this:

If one has the syndrome, they see a red rose as green.... But they would NOT be actually drawing a green rose. Ok? if I see red rose as green, I would also see the red crayon as green. Both the red rose and red crayon would both look green to me. As the result, the child with this syndrome would still draw a rose which to them looks green but to everyone else, it would look red - because both the crayon and the rose look the same color to them. So they will always match those colors.

It is not like they see the red rose as green and then grab a green crayon, which by the way, they perceive as yellow. They would grab the crayon that matches the color of the rose (whatever color it is).
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