Note on sampling:
The total sample of BES 2014 was designed proportionally to the universe based on 2,506 interviews.However, to allow the reading of the isolated results of the state of Sao Paulo (state capital, capital surrounding periphery and interior cities of the state), the initial sample of each of these areas was supplemented, arriving at a total sample of 3,136 interviews. With the sample complement, Brazil was over-represented in these areas, making it necessary to use weights to understand the proportional representation of all areas in relation to the universe in question. Therefore, the use of the weighs is not necessary only in the following cases: 1. Results only for the state capital of São Paulo; 2. Results only for the surrounding capital periphery of São Paulo; 3. Results only for the interior cities of São Paulo; . 4. Other results that do not include the state of São Paulo.
Stratified probability sampling (by city, regarding the 5 regions and 27 states of the country, census track, household). National sample_2.506 interviews + complemented by 630 interviews in the State of São Paulo.
