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09 Aug 2025, 11:20
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E
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Out of those suffering from manic depression, patients who live at home have more bouts of depression than do patients at mental health care facilities. As a part of an experiment, some of the patients in the mental health care facility were relocated to home environments, from which stress-causing factors had been eliminated. It was found that the patients at home environments had more depression bouts than the patients at the mental health care facilities. Therefore, the opinion that the stress-free environment of mental health facilities is the sole reason for their success is clearly wrong.
Which of the following, if true, helps assess the validity of the conclusion?
A. Most of the patients observed in the home environments were living with family members.
B. There were some patients in the health care facility who would have preferred to remain in their home environments.
C. The doctors observing patients in their home environments were more accredited than the doctors observing the other group.
D. The dosage of anti-depressive medicine was the same for patients in both the groups studied.
E. The time period of study was sufficient for patients to acclimatize to new surroundings that could otherwise have caused severe anxiety.
GMAT-Club-Forum-uv10m8dn.jpeg [ 150.75 KiB | Viewed 2420 times ]
Which of the following, if true, helps assess the validity of the conclusion?
A. Most of the patients observed in the home environments were living with family members.
B. There were some patients in the health care facility who would have preferred to remain in their home environments.
C. The doctors observing patients in their home environments were more accredited than the doctors observing the other group.
D. The dosage of anti-depressive medicine was the same for patients in both the groups studied.
E. The time period of study was sufficient for patients to acclimatize to new surroundings that could otherwise have caused severe anxiety.
Attachment:
GMAT-Club-Forum-uv10m8dn.jpeg [ 150.75 KiB | Viewed 2420 times ]
13 Aug 2025, 05:52
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A. Most of the patients observed in the home environments were living with family members.
This is just a description of the home setup — it doesn’t tell us whether family presence increases or decreases depression, so it doesn’t really help test the conclusion.
B. There were some patients in the health care facility who would have preferred to remain in their home environments.
Patient preference might affect happiness, but it doesn’t directly show whether the stress-free environment is or isn’t the main reason for facility success.
C. The doctors observing patients in their home environments were more accredited than the doctors observing the other group.
Doctor accreditation affects observation quality, but the conclusion is about causes of depression bouts, not about measurement accuracy.
D. The dosage of anti-depressive medicine was the same for patients in both the groups studied.
This controls for one possible difference i.e medicine dosage but doesn’t address the most likely confound here — the stress or adjustment period from relocation.
E. The time period of study was sufficient for patients to acclimatize to new surroundings that could otherwise have caused severe anxiety.
If the time period wasn’t enough, higher depression bouts in home patients could just be due to temporary relocation stress, not because the home environment is actually worse. Knowing they had time to acclimate removes that doubt, so the conclusion becomes stronger.
ANSWER - E
This is just a description of the home setup — it doesn’t tell us whether family presence increases or decreases depression, so it doesn’t really help test the conclusion.
B. There were some patients in the health care facility who would have preferred to remain in their home environments.
Patient preference might affect happiness, but it doesn’t directly show whether the stress-free environment is or isn’t the main reason for facility success.
C. The doctors observing patients in their home environments were more accredited than the doctors observing the other group.
Doctor accreditation affects observation quality, but the conclusion is about causes of depression bouts, not about measurement accuracy.
D. The dosage of anti-depressive medicine was the same for patients in both the groups studied.
This controls for one possible difference i.e medicine dosage but doesn’t address the most likely confound here — the stress or adjustment period from relocation.
E. The time period of study was sufficient for patients to acclimatize to new surroundings that could otherwise have caused severe anxiety.
If the time period wasn’t enough, higher depression bouts in home patients could just be due to temporary relocation stress, not because the home environment is actually worse. Knowing they had time to acclimate removes that doubt, so the conclusion becomes stronger.
ANSWER - E
15 Aug 2025, 22:24
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D. The dosage of anti-depressive medicine was the same for patients in both the groups studied.
If medication levels differed between groups, that could explain the difference in depression bouts, undermining the conclusion. Keeping dosage the same controls a major confounder and helps assess whether the stress-free environment alone accounts for outcomes.
If medication levels differed between groups, that could explain the difference in depression bouts, undermining the conclusion. Keeping dosage the same controls a major confounder and helps assess whether the stress-free environment alone accounts for outcomes.
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