Methodology
IBOPE's sample has considered differences in gender, education, family
income, age, origin and hometown size and type to compose the universe
of people heard (two thousand). The survey was conducted among voting
people at 16 or older. The interviews were carried out between Feb 24
and 28, 2000.
Sample
Elaborated with proportional quota according to the significant variables:
- Gender: data from TSE / 1996;
- Age group: data from TSE / 1996;
- Occupation: data from Brazilian Geography and Statistics Institute
(IBGE) / 1991, adjusted by PNAD / 1996;
- Geographic location: data from IBGE / 1991.
Data collection
- Personal interviews using a questionnaire elaborated according
to the objectives of the survey.
- The interviews were carried out by the Brazilian Institute of Survey
and Statistics (IBOPE) trained personnel.
Quality control
- All the questionnaires (100%) were filtered after the interviews.
- 20% of the questionnaires were checked.
- The error range is 2% above or below.
Intervier profile
|
Topic
|
Description
|
Sample
|
|
Gender
|
men
|
1006
|
|
women
|
994
|
|
Age
|
16 to 24
|
419
|
|
25 to 34
|
500
|
|
35 to 49
|
580
|
|
50 on
|
501
|
|
Education
|
up to first elementary
|
831
|
|
unfinished and finished elementary
|
548
|
|
unfinished and finished high school
|
501
|
|
college degree and above
|
120
|
|
Location
|
North/ Central West
|
252
|
|
Northeast
|
544
|
|
Southeast
|
887
|
|
South
|
317
|
|
Type of city
|
Capital
|
475
|
|
Outskirts
|
224
|
|
Countryside
|
1301
|
|
Size of city (number of voting people)
|
up to 20 000
|
643
|
|
from 20 000 to
100 000
|
522
|
|
over 100 000
|
835
|
|
Family income (expressed in number of minimum wages) mínimos)
|
over 10
|
130
|
|
5 to 10
|
291
|
|
2 to 5
|
680
|
|
1 to 2
|
456
|
|
up to 1
|
325
|
|
not declared
|
118
|
