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yashsharma1
Joined: 18 Apr 2025
Last visit: 02 Sep 2026
Posts: 75
Given Kudos: 26
Location: India
Schools: IESE '26 (WL)
GMAT Focus 1: 645 Q81 V82 DI83 
Products:
10 Jul 2026, 09:35
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Here, the question is establishing a causal link.
1. They found that kids who use screen for more than 6 hours (SC>6) have high IP.
2. High IP is linked/associated to vision impairment (VI)
Hence heavy screen usage is increasing vision impairment
But what if the cause of high IP in the >6 hour screen usage group of kids is something other than screen usage. OR
What if vision impairment causes high IP, then the flow of cause effect SC>6 -> IP -> VI and hence SC>6 -> VI does not stand.
A. Readings during any time in study are irrelevant because we still won't know the cause of such high IP readings to assess whether SC>6 was the reason or not.
B. We are not assessing the effectiveness of the indicator IP vs any other. We are given the association in the question and need to see if the cause effect direction makes sense.
D. We are concerned about a group of kids where SC>6 leads to increased IP. There can be cases where even without screen usage more than 6 hours, IP might increase. But that will just tell us that there can be reasons other than screen time for IP increase and hence VI. We still can't say if SC>6 is leading to VI or not
E. The conclusion is linking screen time to vision impairment via increased IP. Other causes of VI are out of scope
C. IMO the most appropriate one. If we know that any other habit, let's say sitting at one place for too long, also increases IP and that in turn leads to VI, then the indirect culprit for VI becomes the sitting and not the screen usage.
1. They found that kids who use screen for more than 6 hours (SC>6) have high IP.
2. High IP is linked/associated to vision impairment (VI)
Hence heavy screen usage is increasing vision impairment
But what if the cause of high IP in the >6 hour screen usage group of kids is something other than screen usage. OR
What if vision impairment causes high IP, then the flow of cause effect SC>6 -> IP -> VI and hence SC>6 -> VI does not stand.
A. Readings during any time in study are irrelevant because we still won't know the cause of such high IP readings to assess whether SC>6 was the reason or not.
B. We are not assessing the effectiveness of the indicator IP vs any other. We are given the association in the question and need to see if the cause effect direction makes sense.
D. We are concerned about a group of kids where SC>6 leads to increased IP. There can be cases where even without screen usage more than 6 hours, IP might increase. But that will just tell us that there can be reasons other than screen time for IP increase and hence VI. We still can't say if SC>6 is leading to VI or not
E. The conclusion is linking screen time to vision impairment via increased IP. Other causes of VI are out of scope
C. IMO the most appropriate one. If we know that any other habit, let's say sitting at one place for too long, also increases IP and that in turn leads to VI, then the indirect culprit for VI becomes the sitting and not the screen usage.
10 Jul 2026, 09:35
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Given
1) >6 hours screen time = Intraocular pressure Increases (assumed by Researchers based on their study)
2) Intraocular Pressure is directly proportional to Vision impairment (known Fact)
3) Conclusion by Researcher = >6H ST = Vision Impairment
while the second is a known fact, we should question if 1 is actually true
Only Option C asks that question, meaning it is checking if there was any other common reason for the increase in IOP, instead of >6H ST
if it is true, the Researcher argument and conclusion falls
if it is false, only >6H ST will stand as the sole reason, assisting in Researcher argument and Conclusion
1) >6 hours screen time = Intraocular pressure Increases (assumed by Researchers based on their study)
2) Intraocular Pressure is directly proportional to Vision impairment (known Fact)
3) Conclusion by Researcher = >6H ST = Vision Impairment
while the second is a known fact, we should question if 1 is actually true
Only Option C asks that question, meaning it is checking if there was any other common reason for the increase in IOP, instead of >6H ST
if it is true, the Researcher argument and conclusion falls
if it is false, only >6H ST will stand as the sole reason, assisting in Researcher argument and Conclusion
10 Jul 2026, 09:40
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Bookmarks
imo the answer should be C.
A - doesn't address the cause of increase.
B & E - irrelevant to causal link between pressure and screen
C - Correct; as other habits can alco contribute to pressure increase
D - light screen users are different group and doesn't directly help with heavy users
A - doesn't address the cause of increase.
B & E - irrelevant to causal link between pressure and screen
C - Correct; as other habits can alco contribute to pressure increase
D - light screen users are different group and doesn't directly help with heavy users
