Self-study
An analysis of the number and severity of health problems among the population of a certain community showed that elderly people who were born in the community and resided there all their lives had significantly worse health than elderly people who had moved there within the past five years.
"Surprising" Phenomenon
In a certain community, elderly people who were born in that community have significantly worse health than elderly people who moved to the community in the last five years.
Objective
Since this is an “Except” question, we’re looking for anything that doesn’t explain the health differences between the two groups of elderly community residence. The correct answer will not give any reason why the elderly people who’ve lived in the community their whole lives have worse health, or why the ones who moved in recently are in relatively better health.
5.
Each of the following, if █████ ███████████ ██ ██ ███████████ ██ ███ ██████████ ██ ██████ ███████ █████ ███ ██████ ███████
a
People who have ███ █████ ██ ████████ ████ ██ ██ ██ ███████████████████ ███████
The elderly people who’ve moved into the community are well-off, and therefore more likely to be in good health. This explains the difference between the two groups.
b
Although most people ███ ████ █████ ████ ███ █████████ ███ ██████ ████ ██████ ███ ████ █████ ██ ███ █████████ ███ █████ █████ ███ ████████
We’re comparing two groups of elderly people. We don’t care about young people who’ve moved into the community, so this doesn’t help resolve anything.
c
The quality of ██████ ████ █████████ ██ ███ █████████ ██ █████ ████ ████ ███ ███ ████ ██ ███ ████████
Elderly people who’ve lived in the community their entire lives have had to make do with worse healthcare than those who haven’t, hence why they’re in worse health.
d
Changes in one's ███████████ ████ ██ ████ █ ██████████ ██████ ██ █████ ███████
Elderly people who recently moved to the community benefited from the move. And elderly people who’ve lived in the community their entire lives have never gotten the benefit of changing their environment.
e
People in good ██████ ███ ████ ██████ ██ ████ ██ ███ ███████████ ████ ███ ██████ ██ ████ ███████
The people who moved to the community were already healthy when they decided to move. This explains why they’re healthier than the existing residents, who we can assume are average in health.