Who was surveyed?
The sample consisted of households selected
randomly from all telephone exchanges in each of
four Minnesota regions:
- Northeast (20 counties in the north central
and northeastern part of the state)
- West (33 counties along the western border of
the state)
- Southeast (24 counties northwest and southeast
of the metro area)
- Twin Cities metro (9 counties)
For each region, a total of 400 interviews were
done with respondents age 55 and older. In addition,
supplemental interviews were done with respondents
age 65 and older to yield a regional total of 400
interviews with respondents 65 and older.
Selection of respondents occurred in two stages.
First a household was randomly selected and then a
person was randomly selected within the household.
The initial screening was conducted to determine
whether anyone in the household was eligible for
participation in the survey.
The respondents: (1) were 55 years old or over
(or 65 years old or over for the supplemental
sample) and (2) had a permanent residence in
Minnesota. When more than one person in the
household met the criteria, the person who had the
most recent birthday was selected to be interviewed.
These selection procedures guaranteed that every
telephone household in each region had an equal
chance to be included in the survey, and that once
the household was sampled, every eligible adult had
an equal chance to be included.
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